皮皮学，免费搜题
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【单选题】
对流运输是指()。
A.
不经过最短线路绕道而行、舍近求远的一种不合理运输
B.
同一种货物在同一线路或平行线路上作相对方向的运送
C.
被运输货物含杂质过多，使运输能力浪费于不必要物资的运转
D.
货物从销售地或中转地向产地或起运地回流的一种运输现象
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举一反三
【单选题】生石膏的分子式是()
A.
CaSO4•2H2O
B.
CaSO4
C.
CaSO4•1/2H2O
D.
CaO
查看完整题目与答案
【单选题】熟石膏的分子式()
A.
CaSO4•2H2O
B.
CaSO4
C.
CaSO4•0.5H2O
D.
CaO
查看完整题目与答案
【单选题】熟石膏的分子式是（）
A.
CaSO42H2O
B.
CaSO4
C.
CaSO4.1/2H2O
D.
CaO
查看完整题目与答案
【简答题】How long has this been going on?
查看完整题目与答案
【单选题】—How long has this bookstore been in business? —_______ 1996.
A.
After
B.
In
C.
From
D.
Since
查看完整题目与答案
【单选题】How long has this study been ongoing at the point of this speech?
A.
75 years
B.
58 years
C.
65 years
D.
47 years
查看完整题目与答案
【单选题】石膏的分子式是（）。
A.
CaSO 4 ·H 2 O
B.
CaSO 4 ·2H 2 O
C.
CaSO 4 ·3H 2 O
D.
CaSO 4 ·4H 2 O
查看完整题目与答案
【单选题】建筑石膏的分子式是 ( )
A.
CaSO 4 ·1/2H 2 O
B.
CaSO 4
C.
Ca(OH) 2
D.
CaSO 4 ·2H 2 O
查看完整题目与答案
【单选题】听力原文：M: Now, then, Mrs. Darcy. How long has this tooth been giving you trouble? W: Well, I had it filled last year and was all right until last Sunday. Then it started hurting again. Q: How long has t...
A.
For a few days.
B.
For several weeks.
C.
Since last year.
D.
For a few hours.
查看完整题目与答案
【单选题】— How long has this bookshop been in business?
A.
____ 1982.
B.
After
C.
In
D.
From
E.
Since
查看完整题目与答案
相关题目：
【单选题】生石膏的分子式是()
A.
CaSO4•2H2O
B.
CaSO4
C.
CaSO4•1/2H2O
D.
CaO
查看完整题目与答案
【单选题】熟石膏的分子式()
A.
CaSO4•2H2O
B.
CaSO4
C.
CaSO4•0.5H2O
D.
CaO
查看完整题目与答案
【单选题】熟石膏的分子式是（）
A.
CaSO42H2O
B.
CaSO4
C.
CaSO4.1/2H2O
D.
CaO
查看完整题目与答案
【简答题】How long has this been going on?
查看完整题目与答案
【单选题】—How long has this bookstore been in business? —_______ 1996.
A.
After
B.
In
C.
From
D.
Since
查看完整题目与答案
【单选题】How long has this study been ongoing at the point of this speech?
A.
75 years
B.
58 years
C.
65 years
D.
47 years
查看完整题目与答案
【单选题】石膏的分子式是（）。
A.
CaSO 4 ·H 2 O
B.
CaSO 4 ·2H 2 O
C.
CaSO 4 ·3H 2 O
D.
CaSO 4 ·4H 2 O
查看完整题目与答案
【单选题】建筑石膏的分子式是 ( )
A.
CaSO 4 ·1/2H 2 O
B.
CaSO 4
C.
Ca(OH) 2
D.
CaSO 4 ·2H 2 O
查看完整题目与答案
【单选题】听力原文：M: Now, then, Mrs. Darcy. How long has this tooth been giving you trouble? W: Well, I had it filled last year and was all right until last Sunday. Then it started hurting again. Q: How long has t...
A.
For a few days.
B.
For several weeks.
C.
Since last year.
D.
For a few hours.
查看完整题目与答案
【单选题】— How long has this bookshop been in business?
A.
____ 1982.
B.
After
C.
In
D.
From
E.
Since
查看完整题目与答案