题目内容

营养左心室侧壁的血液主要来自

A. 后室间支
B. 前室间支
C. 左室后支
D. 旋支

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有关心的静脉, 正确的是

A. 心大静脉与前室间支伴行
B. 心中静脉与后室间支伴行
C. 心小静脉注入冠状窦右端
D. 以上均正确

We'd like to make an ____ with your manger to further discuss the contract.

A. opportunity
B. influence
C. appointment
D. experiment

We should be ______of cultural differnces while doing foreign trade.

A. aware
B. active
C. friendly
D. hopeful

About a quarter of American adults say that they ____ a book in whole in the past.

A. will not read
B. do not read
C. would not read
D. have not read