两性霉素B抗真菌的作用机制是()。
A.阻止核酸合成
B.与细胞膜类固醇结合,使其通透性增加
C.抑制二氢叶酸合成酶
D.抑制二氢叶酸还原酶
E.抑制蛋白质合成
参考答案:B
The government has to close those small factories to prevent the water of the river ______.
[ ]
A. polluting
B. from polluting
C. being polluted
D. polluted
糖尿病患者择期术前空腹血糖最高勿超过多少mmol
A.11.2
B.12.2
C.13.2
D.14.2