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【单选题】
关于药物稳定性叙述错误的是( )A.
通常将反应物消耗一半所需的时间为半衰期
B.
大多数药物的降解反应可用零级、一级（伪一级）反应进行处理
C.
如果药物降解反应是一级反应，药物有效期与反应物浓度有关
D.
温度升高时，绝大多数化学反应速率增大
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【单选题】It was ten years later____ he knew that the boy was his brother.
A.
which
B.
that
C.
what
D.
when
【单选题】The writer knew what the teacher said to the little boy.
A.
Right.
B.
Wrong.
C.
Doesn't say.
【简答题】In junior high school, one of my classmates, Ethan, was addicted to TV. This boy simply knew everything about such pop shows as Who’s the Boss ? Then one day Ethan’s mother made an offer in order to d...
【单选题】It seems the boy knew everything, though in fact he does not. [ ]
A.
like
B.
that
C.
as
D.
as if
【单选题】The lively boy suddenly appeared to be ________ quiet, so his mother knew something unusual must have happened.
A.
casually
B.
consequently
C.
curiously
D.
constantly
【单选题】1990年4月,我军选派了5名军事观察员赴____执行联合国维和任务,开启中国军队参加联合国维持和平行动的序幕。
A.
联合国停战监督组织
B.
联合国柬埔寨临时权力机构
C.
联合国伊拉克-科威特观察团
【单选题】The boy knew everything ____ .
A.
the moment he was asked to stay behind
B.
when the teacher started talking about honesty
C.
only some time later
D.
when he was walking out of the room
【单选题】I knew the lady________Bill when she spoke of a bright young boy. [ ]
A.
referred to
B.
was referring to
C.
pointed at
D.
was pointing at
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