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【单选题】

There have been many（）in their marriage but they still love each other.

A、ups and downs

B、from head to toe

C、time and again

D、over and over

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更多“There have been many（）in their marriage but they still love each other.”相关的问题

第1题

[单选题] （）so many people in the United States been out of work as today.

A、More than ever before B、In the past, there have never C、Never before have D、Formerly, there never were

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第2题

[单选题] （）during the voyage any case or suspected case of plague，cholera，yellow fever，smallpox，typhus or relapsing fever?

A、Has there been B、Have there been C、Has there D、Have there

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第3题

[单选题] There have been many（）in their marriage but they still love each other.

A、right and wrong B、back and forth C、ups and downs D、right and left

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第4题

[单选题] （）, the book has many mistakes.

A、Having not been written carefully B、Not writing carefully C、Having written not carefully D、Not having been written carefully

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第5题

[单选题] You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0, How many usable host address will there e per subnet?（）

A、510 B、1022 C、2046 D、8190

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第6题

[单选题] You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0, How many usable host address will there e per subnet?（）

A、510 B、1022 C、2046 D、8190

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第7题

[单选题] You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0.How many usable host addresses will there be per subnet?（）

A、510 B、1022 C、2046 D、8190

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第8题

[单选题] You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0. How many usable host addresses will there be per subnet?（）

A、510 B、1022 C、2046 D、8190

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第9题

[] （）for many years，the AB passed the examination and became an officer.

A、A.Having ignored him B、B.To have been ignored C、C.To be ignored D、D.Having been ignored

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