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举一反三
【多选题】关于药物作用机制的描述，正确的是（）
A.
药物可作为生命代谢物质的补充剂，参与或干扰细胞代谢过程
B.
抗酸药中和胃酸治疗溃疡病，主要是影响生理物质的转运过程
C.
新斯的明竞争性抑制胆碱脂酶，是药物对酶的影响作用所致
D.
药物可直接作用于细胞膜的离子通道
【单选题】Rich Americans are willing to take conspicuous consumption to new heights by spending big bucks to fly into space, including paying 100,000 for a 1S-minute trip into the heavens, according to a poll r...
A.
Whether space travel will be profitable.
B.
Whether space travel is technically practicable.
C.
What the public think about space travel.
D.
What cost people would pay for space travel.