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【单选题】
低腰线连衣裙适合()的女生。A.
胃部凸出
B.
肚子凸出
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反馈参考答案：
举一反三
【单选题】— Do you know when Peter _____ May? — Perhaps it will be five months before they _____. [ ]
A.
will marry with; get married
B.
marries; get married
C.
will marry; get married
D.
marries; will get married
【单选题】Perhaps I’m not quite fit for the job, but ________, please let me have a try.
A.
anyhow
B.
in fact
C.
or so
D.
otherwise
【单选题】— Will $ 1,000 _____ the cost of the trip? — I’m afraid not. Perhaps I need _____ $ 400.
A.
pay; another
B.
charge; more
C.
cover; another
D.
afford; more
【单选题】----Will $ 1,000 _______ the cost of the trip? ----I’m afraid not. Perhaps I need _______ $500.
A.
pay; another
B.
charge; more
C.
cover; another
D.
afford; more
【单选题】— Do you know when he ________ the trip to the USA? — Perhaps next week, but I’m not sure.
A.
makes
B.
made
C.
has made
D.
is making
【简答题】简述数控机床各组成部分的作用。
【简答题】简述数控机床各基本组成部分的作用。
【单选题】氟乙酰胺与氟乙酸钠均为具有接触、熏蒸、内吸作用的高效有机氟农药,剧毒,人口服 LD50 约为 多少 ,且易造成二次甚至三次中毒。 ( )。
A.
1 ～ 2 mg/kg
B.
10 ～ 1 5 mg/kg
C.
2～10mg/kg
D.
1 5 ～ 2 0mg/kg
【简答题】简述数控机床的组成及各部分作用。
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