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【单选题】
地的 t1/2 为 36h ,若每日给予维持量,达到稳步血浓度约需:A.
10 天
B.
12 天
C.
9 天
D.
6 天
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反馈参考答案：
举一反三
【单选题】What were the students assigned to do?
A.
To write an essay.
B.
To improve their handwriting.
C.
To attend a composition class.
D.
To find a beautiful thing around.
【简答题】冷漠：冷酷：热情（ ）
【简答题】The students were instructed to do the experiment carefully and to ______ their reports at the beginning of next week. (turn)
【单选题】某大学的男女比例是 1 : 3 ;从该大学的男生中随机抽取了 100 人,女生中随机抽取了 300 人;作为研究样本,这种抽样的方法是( )
A.
简单随机抽样
B.
系统随机抽样
C.
比例分层抽样
D.
方便抽样
【单选题】根据《导游管理办法》规定,申请人申请导游证的,所在地旅行社或者旅游行业组织应当自申请人提交申请之日起()内确认 合同或者注册信息。
A.
5日
B.
5个工作日
C.
10日
D.
10个工作日
【单选题】The students were instructed to do the experiment carefully and to ______ their report at the beginning of next week.
A.
turn out
B.
turn in
C.
turn off
D.
turn down
【单选题】The students were______the prospect of having to do their projects all over again.
A.
faced with
B.
charged with
C.
related to
D.
accustomed to
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