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【单选题】
肾上腺素主要作用于下列哪个受体?( )
A.
α受体和β受体
B.
M受体和β受体
C.
M受体和α受体
D.
N受体和M受体
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【单选题】It has been years we enjoyed ourselves so much as today.
A.
although
B.
since
C.
due to
【单选题】It has been two years we left school.
A.
since
B.
when
C.
before
D.
as
【单选题】It has been three years_____we arrived here.
A.
since
B.
for
C.
before
D.
by
【多选题】下列属于高分子化合物特性的是( )
A.
丁铎尔现象
B.
电泳现象
C.
稳定性大
D.
易聚沉
E.
黏度大
【单选题】某建筑公司设有集团财务部、设计部、规划部、工程部、物资部、行政部这6个主要部门,当公司承接一个建设项目时由设计部、规划部、工程部、物资部、行政部各抽调人员组成项目小组进行项目开发和实施。该建筑公司所采取的组织形式为( )。
A.
行政层级式
B.
职能式
C.
矩阵式
D.
事业部式
【单选题】It has been three years since we_____at the meeting. [     ]
A.
 have met
B.
met
C.
meet
【单选题】????It has been almost five years we saw each other last time.????
A.
after
B.
before
C.
since
D.
when
【简答题】实验7中药粉末显微鉴定
【简答题】How time flies ! It has been almost ten years we met last time.
【单选题】It has been 10 years____ we separated last time.
A.
before
B.
since
C.
after
D.
when
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