单项选择题

Identification:Test A may be omitted if test B,and D are carried out．Test B,C,and D may be omitted if test A is carried out．根据上文的规定，假如完成了实验C，如要达到鉴定目的，其他一定要进行的实验是（）

A．TestA
B．TestB
C．TestB和TestA
D．TestA和TestD
E．TestB和TestD

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单项选择题

First gently rotate the vial to mix．Draw up the proper amount into the syringe．Check the dose carefully．Clean the injection site with rubbing alcohol．Change the injection site daily to prevent scarring．Do not inject cold insulin To prevent scarring,what should be clone when injections are given（）

A．控制适当的剂量
B．小心消毒注射处
C．每天更换注射部位
D．注射前将药瓶轻轻振摇使混合
E．不能空腹注射

单项选择题

Intravenous injection of dl-tetrahydropalmatine,corydalis L ord-corydaline affordedanalgesic actions in rabbits．The first two agents had stronger actions than the latter．镇痛作用最弱的物质是（）

A．dl-tetrahydropalmatine
B．corydalis L
C．d-corydaline
D．corydaline and corydalis L
E．d-corydaline and dl-tetrahydropalmatine

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