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【单选题】
下列还原反应所需的试剂是 ( )A.
Fe/HCl
B.
NH 2 NH 2 . H 2 O-KOH
C.
LiAlH 4
D.
NaBH 4
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反馈参考答案：
举一反三
【单选题】下列程序的运行结果是 ( )。 #include main() { int a=2,c=5; printf("a=%d,b=%d\ n",a,c); }
A.
a=%2,b=%5
B.
a=2,b=5
C.
a=d, b=d
D.
a=%d,b=%d
【单选题】下列程序的运行结果是_______ 。 #include void fun(int *a,int *b) { int *k; k=a; a=b; b=k; } int main() { int a=3,b=6,*x=&a,*y=&b; fun(x,y); printf("%d%d",a,b); }
A.
63
B.
36
C.
编译出错
D.
00
【单选题】In ancient China, gentlemen wore jade ornaments, mainly because ___.
A.
jade, as it’s precious, symbolize wealth one owns
B.
Confucius compared the qualities of jade to person’s virtue
C.
jade can help to ward off evil intrusion
D.
jade objects have their sophisticated aesthetic appeal
【简答题】可贷资金(loanable funds)
【单选题】In the loanable funds market, borrowers:
A.
are best represented by the supply of loanable funds.
B.
are not affected by changes in the inflation rate.
C.
are best represented by the demand for loanable funds.
D.
lose money to unexpected increases in the inflation rate.
【单选题】为了防止合成氨的催化剂中毒而失活,在生产工艺过程中,必须进行原料气的净制,以除去气体中有害的气体。主要有害气体是
A.
硫化合物,CO和CO2
B.
硫化合物,CO2和CH4
C.
硫化合物,CO和CH4
D.
硫与砷的化合物以及CH4
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