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【单选题】
若整形变量 a,b,t 已正确定义,现要将 a 和 b 中的数据进行交换,下面不正确的是 ______ 。A.
t=a; a=b; b=t;
B.
t=a, a=b, b=t;
C.
a=t; t=b; b=a;
D.
t=b; b=a; a=t;
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【单选题】He joined the army ten years ago. That is to say, he ____in the army for a decade.
A.
was
B.
has been
C.
is
D.
had been
【单选题】He in the army for ten years, and he retired last year.
A.
has served
B.
had served
C.
served
D.
had been served
【单选题】It can be inferred from the third paragraph that the President______.
A.
is in favor of choice advocates
B.
does not like the idea of abortion
C.
wants Roe to be arrested
D.
is not very popular in the country
【单选题】材料题请点击右侧查看材料问题 查看材料
A.
The woman's choice is wise.
B.
It is not easy to go to an unusual site.
C.
Guidebook should be updated.
D.
They have to choose the popular sites.
【单选题】He hated the war so much that he decided to leave the army for good .
A.
permanently
B.
for good-looking
C.
for a long time
D.
shortly
【单选题】以下哪一个属于航空运输的优点
A.
原始投资少，资金周转快
B.
包装要求低
C.
可以利用天然的河道、海洋条件，实现大吨位，长距离的运输。
D.
功率大、速度快、过载能力强和运行可靠等，而且不污染环境，特别适用于运输繁忙的干线和隧道多，坡度大的山区。
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