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【单选题】
物流过程中由生物学变化所引起的商品质量变化是（ ）A.
腐蚀
B.
僵直
C.
霉变
D.
老化
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举一反三
【简答题】I. Complete the sentences with the correct form of the expressions in the box. A. tore up B. log on C. go about (sth.) D. on file E. not to mention ...
【多选题】在一定温度下,向 a L 的密闭容器中加入1 molX气体和2 molY气体,发生如下反应:
A.
g)+2Y(g) ⇋ 2Z(g)，此反应达到平衡的标志是
B.
容器内压强不随时间变化
C.
容器内各物质的浓度不随时间变化
D.
容器内X、Y、Z的浓度之比为1：2：2
E.
单位时间内消耗0.1 mol X 同时生成0.2 mol Z
【简答题】I . 用所给词的适当形式填空。 1. He gives up his weekend (help) the old people. 2. Jack volunteers (be) a doctor at a Children’s Hospital. 3. I want to learn more about how (care) for animals. 4. He got a feeling ...
【单选题】I want to learn __________ cars.
A.
how to repair
B.
repair how to
C.
how repair to
D.
to repair how
【简答题】补全对话，其中两项为多余。 A. I can play it well. B. What club do you want to join? C. I want to join the singing club. D. I can't play it well. E. What about you? F. I have no time. G. I want to join the swimming...
【简答题】听音，填空。 library bedroom school gym park 1. I want to learn English. I am going to _____________. 2. I want to play badminton. I am going to the _____________. 3. I want to read books. I am ...
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