不稳定性心绞痛（）。 A.冠状动脉痉挛 B.冠状动脉内完全闭塞性_爱下问搜题

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问题单项选择题 B型题

不稳定性心绞痛（）。

A.冠状动脉痉挛

B.冠状动脉内完全闭塞性血栓形成

C.冠状动脉斑块破裂不完全血栓形成

D.冠状动脉粥样硬化狭窄>99%

E.冠状动脉粥样硬化狭窄>90%

答案

参考答案：C

填空题

根据句意,选择方框中所给的动词,用其正确形式填空

sew borrow be get drink need do eat have raise

1. I __________ vitamins to stay healthy.
2. Last Friday everyone __________ fun at the fashion show and the students __________ lots
of money for Project Hope.
3. __________ good food and __________ exercise are good for your health.
4. Yesterday I __________ these long red boots from my mother.
5. It's important __________ lots of water every day.
6. There __________ no calories in water, so you can drink it without __________ fat.
7. Afterwards, he __________ some blue strips on the trainers.

填空题

计算：sin30°•cos45°=______．