The current size of China s Dragon chip technology is The current size of China s Dragon chip techno

Now the most advanced is the Loongson 2F, which has not fully released the data, and it is said to be a quad-core CPU, and the processing speed is comparable to that of the Ben Si. It has been announced that the processing speed of Loongson 2E is about that. It is comparable to the initial product of Bensi.

It can only be regarded as a better performance in embedded processors, which is stronger than the whole series of ARM. It can't be compared with general-purpose processors (that is, Intel they produce). The performance gap is too great, and the design ideas are completely different.

In addition, Loongson's instruction set should be modeled after the American MIPS, which can be regarded as piracy in a sense. It seems that there is still a lawsuit ......

There is only one product of the chemical reaction in A, and there are two products of the above reaction, so A is wrong

The displacement reaction in B is the reaction of elemental and compound to produce elemental and compound, and the above reaction is in line with the hole collision, so B is correct

There is only one reactant of the decomposition reaction panicle return in C, and there are two kinds of reactants of the above reaction, so C error The metathesis reaction in D is the exchange of components between compounds and compounds to form compounds and compounds, and the above reaction does not match, so D is wrong

Therefore, choose B

There is only one product of the chemical reaction in A, and there are two kinds of products of the above reaction, so A is wrong The displacement reaction in B is the reaction of elemental matter and compound to form elemental and compound, and the above reaction is consistent, so B is correct

There is only one reactant of the decomposition reaction in C, and there are two kinds of reactants of the above reaction, so C error The metathesis reaction in D is the exchange of components between compounds and compounds to form compounds and compounds, and the above reaction does not match, so D is wrong

Therefore, choose B

1) The product contains 1 silicon atom, 4 hydrogen atoms, 4 chlorine atoms, and the reaction hole bump already contains 4 hydrogen atoms, and 1 silicon atom and 4 chlorine atoms are missing, so the chemical formula of x is: SiCl4

2) Let at least the mass of hydrogen be x

sicl42h2

The heat is shivering and hungry.

si+4hcl

Spike return x 56 g according to 4

x56g gives x=8 g

A: At least the mass of hydrogen required is 8 g

So the answer is: (1) SiCl4

2）8g．

(1) The product contains 1 silicon atom, 4 hydrogen atoms, 4 chlorine atoms, and the reactant already contains 4 hydrogen atoms, and 1 silicon atom and 4 chlorine atoms are missing, so the chemical formula of x is: SiCl4;

2) Solution: Let at least the mass of hydrogen required be x

sicl4+2h2

High temperaturessi+4hcl

x 56 g

According to 428x56g

The solution is x=8 g

A: At least the mass of hydrogen required is 8 g

So the answer is: (1) SiCl4（2）8g．

a. There is only one product of the chemical reaction and two kinds of products of the above reaction, and the above reaction does not conform to it, so A is wrong

B. Metathesis reaction is the exchange of components between compounds and compounds to form compounds and compounds, and the above reactions do not conform to the type and are carefully combined, so B is wrong

c. The displacement reaction is the reaction of elements and compounds to form elements and compounds, and the above reactions are in accordance with them, so C is correct

d. There is only one reactant of the decomposition reaction, and there are two kinds of reactants of the above reaction, and the above reaction does not conform to it, so D is wrong

Therefore, C

a. There is only one product of the chemical reaction, and there are two kinds of products of the above reaction, and the above reaction does not match, so A is wrong

B. The metathesis reaction is the exchange of components between compounds and compounds to form compounds and compounds, and the above reactions do not match, so B is wrong

c. The displacement reaction is the reaction of elements and compounds to form elements and compounds, and the above reactions are in accordance with them, so C is correct

d. There is only one reactant of the decomposition reaction, and there are two kinds of reactants of the above reaction, and the above reaction does not conform to it, so D is wrong

Therefore, C