导致粘着斑装配的信号通路是由_________________介导的。
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胶原蛋白由重复的Gly-X-Y序列构成。其中Y常为羟脯氨酸或羟赖氨酸残基，X常为()。
A. 精氨酸
B. 赖氨酸
C. 脯氨酸
D. 缬氨酸
层粘连蛋白含有_____________结合位点，与细胞外基质相连，依赖于膜上____________相连与细胞膜相连。
__________ my love of landscape, nothing could persuade me to spend another day in the Highlands
A. But for
B. For all
C. Above
D. Except for
In no circumstance __________ .
A. smoking should be allowed on the campus
B. should smoking b allowed on the campus
C. should smoking allowed on the campus
D. should smoking allow on the campus
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