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【单选题】
关于量反应,下列说法正确的是A.
暴露一定剂量外源化学物后所引起的一个生物个体、器官或组织的生物学改变
B.
变化程度用百分率或比值进行表示
C.
量反应的量效曲线不能表现为S形半对数图,只有质反应的量效曲线才可能
D.
量反应的量效曲线提示群体对毒物反应的差异
E.
游离器官和完整动物均可观察到量反应,但游离器官的量反应因作用机制的问题在分析和描述完整动物更加复杂些
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举一反三
【单选题】As soon as Jane_______theroom,she knew there was something wrong.
A.
Enters
B.
had entered
C.
entered
D.
was entering
【简答题】导游人员在带团过程中要充当管理者的角色，这要求导游要有很强的拉制能力。()
【单选题】What can we learn from the interview?
A.
Jane and Harry are sisters.
B.
Jane and Harry are undergraduates.
C.
Jane and Harry are postgraduates.
D.
Jane and Harry are teachers.
【单选题】Shared experience and common hatred toward the same enemy _________ together.
A.
bind
B.
bund
C.
bun
D.
bound
【简答题】写在本上,拍照上传: “Culture” may be something defined by shared experience rather than shared nationality or ethnicity. (采分点:be defined by, shared experience, rather than, nationality, ethnicity)
【简答题】What is the experience shared by many first-time visitors to China?
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