问题
名词解释
绝对不应期
答案
参考答案:
在细胞或组织接受一次有效刺激而兴奋的一个较短时间内,它无论再接受多强的刺激也不能产生动作电位。这一时期称为绝对不应期。
绝对不应期
参考答案:
在细胞或组织接受一次有效刺激而兴奋的一个较短时间内,它无论再接受多强的刺激也不能产生动作电位。这一时期称为绝对不应期。
阅读理解。 | |
Please answer the questions about the prices of the two hotels. (注:&=英镑)
| |
1.The Sheraton Hotel is ______ than the Gateway Hotel | |
[ ] | |
A. cheaper B. dearer C. bigger D. cleaner | |
2. I want to stay in the Sheraton for two weeks in August. I need about ______. | |
[ ] |
A. &750 B. &515 C. &695 D. &573 |
3. The two hotels are open for ______ months of the year. |
[ ] |
A. nine B. ten C. eleven D. twelve |
4. It is cheaper to stay in the Gateway in May than it is in ______. |
[ ] |
A. November B. March C. October D. July |
5. From October to December it is dearer to stay in the Sheraton than from _____ to _____. |
[ ] |
A. June; August B. January; March C. May; July D. July; September |