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【单选题】
大肠杆菌最常见的肠外感染是()。
A.
手术创口感染
B.
腹膜炎
C.
泌尿系统感染
D.
败血症
E.
脑膜炎
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皮皮学刷刷变学霸
举一反三
【单选题】The reason that Iran tested its military weapons is mainly to
A.
meet the international standard.
B.
cover its uranium enrichment plant.
C.
manufacture the launching system.
D.
show off its defensive capabilities.
【简答题】硝酸还原作用( Nitrate reduction)
【判断题】“乐天长短三千首,却爱韦郎五字诗”是欧阳修对韦应物的赞许。( )
A.
正确
B.
错误
【单选题】微生物还原硝酸盐、亚硝酸盐为分子氮的过程称为______。
A.
生物固氮    
B.
硝酸还原    
C.
硝化作用    
D.
反硝化作用
【单选题】反硝化作用是以( )作为氮源,通过硝酸还原酶将硝酸还原成氮气或氨。
A.
硝酸盐
B.
尿素
C.
蛋白质
D.
氨基酸
【单选题】“乐天长短三千首,却爱韦郎五字诗”是宋代名诗人( )对韦应物的赞许之辞。
A.
欧阳修
B.
苏轼
C.
黄庭坚
D.
朱熹
【简答题】Iran tested its first nuclear power plant on _________.
【单选题】When did Iran bar the inspections of its nuclear facilities?
A.
After its nuclear activities were referred to the Security Council.
B.
After Mohamed E1Baradei sent a report to the Security Council.
C.
After Iran continued its nuclear: fuel enrichment.
D.
After the U.N. Security Council dropped its case, and returned it to the International Atomic Energy Agency.
【单选题】However, Iran _____ that its nuclear plan is only for peaceful purposes, and continues its nuclear activity. [     ]
A.
insists
B.
suggests
C.
forecasts
D.
judges
【判断题】用钳表测量电动机空转屯流时,可直接用小电流档一次测量出来。
A.
正确
B.
错误
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