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【单选题】
下面有关酸效应的说法错误的是A.
酸效应在配位滴定中总是不利的
B.
酸效应会影响参加反应的 EDTA
C.
酸效应的大小可用酸效应系数来衡量
D.
酸效应系数是 [H + ] 的函数
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【单选题】某女士,已婚,月经规律,月经周期第 22天取子宫内膜检查所见:腺体较大,腺腔内含大量糖原,内膜间质水肿。该内膜为
A.
月经期
B.
增生期
C.
分泌期
D.
月经前期
【单选题】听力原文：W: Will you water flowers for me while I'm away? M: Sure I will. Q: What will the man do for the woman? (7)
A.
Clean her house.
B.
Buy her some flowers.
C.
Water her flowers.
D.
Go away with her.
【单选题】听力原文：W: If I buy some flowers for the house, will you water them for me while I'm way? M: Sure I will, if you'll water mine while I'm on vacation. Q: What will the man do for the woman? (8)
A.
Bring her some water.
B.
Buy her some flowers.
C.
Water her flowers while she is away.
D.
Water her flowers while she is on vacation.
【单选题】—Jack, you water the flower today, ___? — But, dad, I watered it yesterday.
A.
do you
B.
will you
C.
didn’t you
D.
don’t you
【单选题】—_____ do you water the flowers? —Twice a day.
A.
How many
B.
How many times
C.
How often
D.
How soon
【单选题】--Jane, you water the flowers today._____? ---But I watered them yesterday.
A.
do you
B.
didn’t
C.
don’t you
D.
will you
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