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【单选题】
作者署名的正确写法是:A.
作者署名的先后顺序没有规则可言
B.
每位作者的姓名之间要加上一个标点符号
C.
每位作者的姓名之间要空一格
D.
作者的署名可用真名也可用化名
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举一反三
【单选题】Why did Liz leave Harvard in 2001?
A.
she has no money to study there.
B.
she liked Columbia University more than Harvard University
C.
she wanted to take care of her sick father.
【单选题】why did Liz leave Harvard in 2001?
A.
She had no money to study there.
B.
She liked Columbia University more than Harvard University.
C.
She wanted to take care of her sick father.
【单选题】Why did Liz leave Harvard in 2001?
A.
She had no money to study there.
B.
She liked Columbia University more than Harvar University.
C.
She wanted to take care of her sick father.
【单选题】Why did Liz leave Harvard in 2001?
A.
She had no money to study there.
B.
She liked Columbia University more than Harvard University.
C.
She wanted to take care of her sick father.
【单选题】Why did Liz leave Harvard in 2001?
A.
She had no money to study there.
B.
She liked Columbia University more than Harvard University.
C.
She wanted to take care of her sick father.
D.
Not mentioned.
【单选题】关于肾上腺素和去甲肾上腺素的叙述，错误的是
A.
两者在化学结构上都属于儿茶酚胺
B.
肾上腺素可使心输量增加
C.
小剂量肾上腺素可引起骨骼肌血管舒张
D.
去甲肾上腺素可升高血压
E.
去甲肾上腺素可使心率加快
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