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【多选题】
为亚急性心内膜炎患者采集血培养标本的做法正确的是( )A.
采集前检查培养基是否足够
B.
为了防止培养基变质，应加入一定的防腐剂
C.
采集后更换针头注入无菌培养瓶内
D.
为了提高培养阳性率，一般取血量为10～15ml
E.
为了减少痛苦，可自静脉留置针处取血
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【单选题】What must one have done before if he intends to apply for this job?
A.
Worked at night
B.
Led an organization
C.
Taught new workers
D.
Completed company audits
【简答题】Peter Wiggins grew up in a poor family. He worked ditly at his ____ job as teaching assistant in a private kindergarten and put in three more hours at night as a parttime cashier at a ___. By th...
【单选题】Had he worked harder, he ______ the job.
A.
must have got
B.
would have got
C.
would get
D.
could get
【简答题】远期交易是非标准化的，期货交易是标准化的，且远期交易与现货交易一样都以获取标的物为目的，期货交易则不然。 ( )
【单选题】以下数据库网站中,需要格式转换不能直接导入文献的是()。
A.
Web of Science
B.
Wiley Online Library
C.
CNKI
D.
American Institute of Physics
【简答题】He had to earn his daily bread by doing odd job.
【多选题】关于金融期货和远期交易，正确的是( )
A.
远期交易的相关条件由双方确定
B.
期货交易是标准化的合约
C.
期货交易违约风险比远期交易高
D.
期货交易实行每日结算，而远期交易实行到期结算方式
E.
期货交易大部分平仓，而远期交易大部分实物交割
【简答题】求参数方程 所确定的函数导数
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