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【多选题】
下列单词中下划线部分有哪些是发/ə/音?
A.
ov e n
B.
a head
C.
cin e ma
D.
pap er
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举一反三
【单选题】单元测试一音频Why does the man need the woman's assistance?
A.
He wants to know how to borrow the videos from the library.
B.
He wants to know the location of the library’s video collection.
C.
He wants to know how to find out where the play is currently being performed.
D.
He wants to know where to find the old newspaper reviews about a play.
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【单选题】下列反应的平衡常数 ：C(s)+O 2 (g)====CO 2 (g)为 ，2CO(s)+O 2 (g)====2CO 2 (g)为 ，C(s)+(1/2)O 2 (g)=CO(g)为 ，则三个平衡常数之间的关系为(  )。
A.
B.
C.
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【判断题】酸奶生产菌种主要是乳酸菌，泡菜生产菌种也主要是乳酸菌。
A.
正确
B.
错误
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【单选题】用于标定Na2S2O3溶液的基准物质是（）
A.
KMnO 4
B.
KIO 3
C.
K 2 Cr 2 O
D.
H 2 O 2
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【单选题】Why does the student go to the woman's office?
A.
To schedule an audition to join an archestra
B.
To ask a question about a music class he is taking
C.
To get information for an article he is writing
D.
To ask a question about a lecture the woman gave
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【简答题】Why does the man offer a lift? [A] Because the woman's home is on his way home. [B] Because the driver is always willing to help others. [C] Because the driver is going home right now. [D] Because the...
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【单选题】Why does the man need the woman's help?
A.
Because he fell down into the deep bunker.
B.
Because he can't get the ball out of the deep bunker.
C.
Because he can't find his ball.
D.
Because he can't find his sand wedge.
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【多选题】红霉素符合下列哪些性质
A.
为大环内酯类抗生素
B.
为两性化合物
C.
结构中有五个羟基
D.
在水中的溶解度较大
E.
对耐药的金黄色葡萄球菌有效
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【单选题】Why does the man say this:
A.
To suggest a course of action for solving the woman's problem.
B.
To express frustration that the woman is unfamiliar with the library.
C.
To let the woman know who will be available to help her in the library.
D.
To indicate that he does not have time to assist the woman now.
查看完整题目与答案
【单选题】298K时，下列反应中， 的为(    )。
A.
B.
C(s)+O 2 (g)====CO 2 (g)
C.
CO 2 (g)+C(s)====2CO(g)
D.
C(s)+H 2 O(g)====CO(g)+H 2 (g)
查看完整题目与答案
相关题目：
【单选题】单元测试一音频Why does the man need the woman's assistance?
A.
He wants to know how to borrow the videos from the library.
B.
He wants to know the location of the library’s video collection.
C.
He wants to know how to find out where the play is currently being performed.
D.
He wants to know where to find the old newspaper reviews about a play.
查看完整题目与答案
【单选题】下列反应的平衡常数 ：C(s)+O 2 (g)====CO 2 (g)为 ，2CO(s)+O 2 (g)====2CO 2 (g)为 ，C(s)+(1/2)O 2 (g)=CO(g)为 ，则三个平衡常数之间的关系为(  )。
A.
B.
C.
查看完整题目与答案
【判断题】酸奶生产菌种主要是乳酸菌，泡菜生产菌种也主要是乳酸菌。
A.
正确
B.
错误
查看完整题目与答案
【单选题】用于标定Na2S2O3溶液的基准物质是（）
A.
KMnO 4
B.
KIO 3
C.
K 2 Cr 2 O
D.
H 2 O 2
查看完整题目与答案
【单选题】Why does the student go to the woman's office?
A.
To schedule an audition to join an archestra
B.
To ask a question about a music class he is taking
C.
To get information for an article he is writing
D.
To ask a question about a lecture the woman gave
查看完整题目与答案
【简答题】Why does the man offer a lift? [A] Because the woman's home is on his way home. [B] Because the driver is always willing to help others. [C] Because the driver is going home right now. [D] Because the...
查看完整题目与答案
【单选题】Why does the man need the woman's help?
A.
Because he fell down into the deep bunker.
B.
Because he can't get the ball out of the deep bunker.
C.
Because he can't find his ball.
D.
Because he can't find his sand wedge.
查看完整题目与答案
【多选题】红霉素符合下列哪些性质
A.
为大环内酯类抗生素
B.
为两性化合物
C.
结构中有五个羟基
D.
在水中的溶解度较大
E.
对耐药的金黄色葡萄球菌有效
查看完整题目与答案
【单选题】Why does the man say this:
A.
To suggest a course of action for solving the woman's problem.
B.
To express frustration that the woman is unfamiliar with the library.
C.
To let the woman know who will be available to help her in the library.
D.
To indicate that he does not have time to assist the woman now.
查看完整题目与答案
【单选题】298K时，下列反应中， 的为(    )。
A.
B.
C(s)+O 2 (g)====CO 2 (g)
C.
CO 2 (g)+C(s)====2CO(g)
D.
C(s)+H 2 O(g)====CO(g)+H 2 (g)
查看完整题目与答案