皮皮学，免费搜题
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搜题
【单选题】
甲氧苄啶的作用机制为
A.
抑制二氢叶酸合成酶
B.
抑制β-内酰胺酶
C.
参与DNA的合成
D.
抑制二氢叶酸还原酶
E.
抗代谢作用
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【简答题】电泵井泵型排量通常分为：50m3,()m3,150m3,()m3,250m3,()m3,()m3和()m3八种类型。
查看完整题目与答案
【单选题】Directions: This section is to test your grammar. There are 10 incomplete sentences in t his part. For each sentence t here are 4 c h oi c es marked A , B , C and D. Choose ONE tha t best c o mpl e te...
A.
much; little
B.
more; fewer
C.
more; less
D.
most; fewest
查看完整题目与答案
【单选题】铅尘的国家卫生标准是
A.
0.05(mg/m3)
B.
0.03(mg/m3)
C.
0.04(mg/m3)
D.
0.02(mg/m3)
E.
0.06(mg/m3)
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【单选题】JPP小流量管线的流量为( )
A.
30 m3/h
B.
50 m3/h
C.
70 m3/h
D.
25 m3/h
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【单选题】苯的国家卫生标准是
A.
20(mg/m3)
B.
30(mg/m3)
C.
40(mg/m3)
D.
50(mg/m3)
E.
60(mg/m3)
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【简答题】1 Directions: Choose ten answers from the box and m ark the best choice , A-O. Walking, if you do it vigorously enough, is the overall best exercise for regular physical activity. It requires no equip...
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【单选题】水泥密度的2次试验结果之差不得超过：()
A.
10㎏/m3;
B.
20㎏/m3;
C.
30㎏/m3;
D.
40㎏/m3。
查看完整题目与答案
【单选题】Task 1 A New English Teacher Directions: Listen to the recording and choose the correct name of the four students. The second name was:
A.
S-U-S-A-double N-E    B-A-C-K-H-O-F-E.
B.
S-U-S-A-double N-E    B-A-C-K-H-O-V-E.
C.
S-U-S-A-double N-I    B-A-C-K-H-O-F-E.
D.
S-U-S-A-double N-E    B-A-C-K-H-O-V-V-
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【单选题】井筒淋水超过()时，应当进行壁后注浆处理。
A.
3 m3/h
B.
6 m3/h
C.
10 m3/h
D.
15 m3/h
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【简答题】Directions: Choose the appropriate words to complete the following passage. A. appearance B. revealing C. receives D. kindness E. shelter F. curse G. broken H. ignores I. transforming J. judge K. desp...
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相关题目：
【简答题】电泵井泵型排量通常分为：50m3,()m3,150m3,()m3,250m3,()m3,()m3和()m3八种类型。
查看完整题目与答案
【单选题】Directions: This section is to test your grammar. There are 10 incomplete sentences in t his part. For each sentence t here are 4 c h oi c es marked A , B , C and D. Choose ONE tha t best c o mpl e te...
A.
much; little
B.
more; fewer
C.
more; less
D.
most; fewest
查看完整题目与答案
【单选题】铅尘的国家卫生标准是
A.
0.05(mg/m3)
B.
0.03(mg/m3)
C.
0.04(mg/m3)
D.
0.02(mg/m3)
E.
0.06(mg/m3)
查看完整题目与答案
【单选题】JPP小流量管线的流量为( )
A.
30 m3/h
B.
50 m3/h
C.
70 m3/h
D.
25 m3/h
查看完整题目与答案
【单选题】苯的国家卫生标准是
A.
20(mg/m3)
B.
30(mg/m3)
C.
40(mg/m3)
D.
50(mg/m3)
E.
60(mg/m3)
查看完整题目与答案
【简答题】1 Directions: Choose ten answers from the box and m ark the best choice , A-O. Walking, if you do it vigorously enough, is the overall best exercise for regular physical activity. It requires no equip...
查看完整题目与答案
【单选题】水泥密度的2次试验结果之差不得超过：()
A.
10㎏/m3;
B.
20㎏/m3;
C.
30㎏/m3;
D.
40㎏/m3。
查看完整题目与答案
【单选题】Task 1 A New English Teacher Directions: Listen to the recording and choose the correct name of the four students. The second name was:
A.
S-U-S-A-double N-E    B-A-C-K-H-O-F-E.
B.
S-U-S-A-double N-E    B-A-C-K-H-O-V-E.
C.
S-U-S-A-double N-I    B-A-C-K-H-O-F-E.
D.
S-U-S-A-double N-E    B-A-C-K-H-O-V-V-
查看完整题目与答案
【单选题】井筒淋水超过()时，应当进行壁后注浆处理。
A.
3 m3/h
B.
6 m3/h
C.
10 m3/h
D.
15 m3/h
查看完整题目与答案
【简答题】Directions: Choose the appropriate words to complete the following passage. A. appearance B. revealing C. receives D. kindness E. shelter F. curse G. broken H. ignores I. transforming J. judge K. desp...
查看完整题目与答案