面对某一时期市场疲软、经济不景气的环境威胁，企业只能等待国家政策的支持和经济形势的好转。 ()
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下列哪种细胞周期时相组成是准确的？()
A. 前期一中期一后期一末期
B. G1一G2一S—M
C. G1—S—G2一M
D. M—G1一S—G2
According to the story, her mother______.
A. thought five pence wasn't much.
B. sent a postal for five pence and an envelop with a stamp and her address
C. asked her to find out the secret quickly.
D. didn't believe the advertisement and didn't want her to do so.
转运内吞是一种特殊的内吞作用，受体和配体在内吞过程中并未作任何处理，只是从一个部位转运到另一个部位。
A. 正确
B. 错误
The passage says that people can faint if they are______.
A. frightened
B. worried
C. happy
D. Both A and B
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