logo - 刷刷题
下载APP
【单选题】

小麦播种后能起到的作用是()。

A.
提墑及促进种子萌发
B.
透气
C.
除草
D.
保温
题目标签:小麦作用镇压
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【多选题】小麦的冻害表现有________。

A.
细胞结冰
B.
根拔
C.
抬苗
D.
凌截死亡

【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】Friction between America’s military and its civilian overseers is nothing new. America’s 220-year experiment in civilian control of the military is a recipe for friction. The nation’s history has seen...

A.
Roosevelt was better prepared to be a wartime president than Lincoln
B.
in the Second World War, the relationship between the White House and the generals was intense
C.
both Lincoln and Roosevelt were good wartime presidents, although their actual way of dealing things may be different
D.
George Washington was actually the best president

【单选题】奎尼丁的主要作用机制是()

A.
抑制钠内流
B.
抑制钙内流
C.
抑制钾内流
D.
阻断β受体
E.
延长动作电位时间