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【单选题】
分送式配送运输的路线规划采用的方法是:
A.
最短路径法
B.
表上作业法
C.
节约里程法
D.
位势法
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【单选题】透光法检测小平面时,如果直尺中间透光明显说明工件
A.
中间凸起
B.
中间凹陷
C.
四周凹陷
D.
表面平整
【单选题】Countries are major participants in international trade. There are about ______ countries in the world now.
A.
100
B.
200
C.
300
D.
400
【单选题】透光法检测小平面时,如果直尺中间透光明显,说明文件()。
A.
表面平整
B.
中间凸起
C.
中间凹陷
D.
无法判断
【简答题】听力填空 There are about 4,400 (1)__________ of animals in China, (2)__________ birds and 2,300 fishes included. (3)__________ one hundred of the (4)__________ enered animals live in China. The (5)___...
【单选题】透光法检测小平面时,如果直尺中间透光明显,说明工件( )
A.
表面平整
B.
中间凸起
C.
中间凹陷
D.
无法判别
【多选题】螺杆钻具由_______和单螺杆马达总成等组成( )
A.
四通阀
B.
万向轴总成
C.
传动轴总成
D.
旁通阀
【简答题】There are about 400 million Chinese people learning English, which makes up ________ of the whole population in China .
【简答题】There are nearly 400 different types of sharks, but only about 30 types have even been reported as attacking human beings. The chances of being attacked by a shark are very small compared to other dan...
【单选题】There are about 400,000 lawyers, most of _____ are in private practice.
A.
his
B.
him
C.
whom
D.
whose
【单选题】There are about 400______working in our school.
A.
woman teachers
B.
womans teachers
C.
women teacher
D.
women teachers
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