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【单选题】
下列说法错误的是A.
6.02×10 23 是加德罗常数的近似值
B.
加德常数个微粒的物质的量是1mol
C.
硫酸的摩尔质量是98克
D.
1mol 12 C原子的质量为12g
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反馈参考答案：
举一反三
【单选题】对输尿管狭窄的叙述中,错误的是
A.
共有3个狭窄部
B.
肾盂与输尿管移行处为一狭窄部
C.
与髂血管交叉处为一狭窄部
D.
末端开口于膀胱内面的输尿管口为一狭窄部
E.
输尿管结石常滞留于输尿管的狭窄部
【单选题】A: John is marriedB: John is a bachelorA and B have the relation of______.
A.
contradiction
B.
consistency
C.
entailment
D.
presupposition
【单选题】John is a very good boy . So now he is listening to the teacher_____. [ ]
A.
careful
B.
well
C.
carefully
D.
good
【单选题】假设数据段定义如下:(1)DA1 DW ’C’,’D’(2)DA2 DB 18 DUP(?)(3)DA3 DW $-DA2(4)……(5)MOV BX,DA3(6)MOV AX,DA1上述指令执行后,BX寄存器中的内容为()。
A.
16
B.
17
C.
18
D.
19
【单选题】若有如下定义,则对da中的a成员的正确引用是()。 struct st{ int a; double b; }da,*p; p=&da;
A.
(*p).da.a
B.
(*p).a
C.
p->da.a
D.
p.da.a
【简答题】John is a manager and he is very busy. He spends a lot of time traveling abroad. So he reads short stories. He likes reading stories about ordinary people and the things that happen to them in t...
【单选题】John is a better basketball player than Bob.
A.
John is a player.
B.
Bob is a player.
C.
Bob is a basketball player.
D.
John is a basketball player.
【简答题】John is a lawyer. John is my neighbor. (complex sentence)
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