Questions 11 to 18 are based on the passage you have just heard.
At a butcher shop.
B. At a restaurant.
C. At a bookstore.
D. At a grocery store.
查看答案
与胞质中cAMP生成有直接关系的G蛋白效应器是
A. 磷脂酶A
B. 磷脂酶C
C. 腺苷酸环化酶
D. 鸟苷酸环化酶
毛细血管内增生性肾小球肾炎的病变特点是
A. 系膜细胞及系膜基质增生
B. 系膜细胞及内皮细胞增生
C. 壁层上皮细胞及巨噬细胞增生
D. 脏层上皮细胞及巨噬细胞增生
According to the passage, as a famous scientist. Newton have did ______ theories.
If his illness is contagious，______ (就应该把他与其它人隔离开，直到恢复健康).
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