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【单选题】
数据链路层通过()来标识不同的主机。
A.
物理地址
B.
交换机端口号
C.
HUB端口号
D.
逻辑地址
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】党的“四条路线”是指政治路线、思想路线、组织路线、( )
A.
群众路线
B.
理论路线
C.
制度路线
D.
文化路线
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【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
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【判断题】硝酸盐在硝酸盐还原酶的作用下，还原成亚硝酸盐。()
A.
正确
B.
错误
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【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
查看完整题目与答案
【简答题】Iran tested its first nuclear power plant on _________.
查看完整题目与答案
【简答题】党的“四条路线”是指政治路线、思想路线、组织路线、（）。
查看完整题目与答案
【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.
查看完整题目与答案
【判断题】脱氮作用即硝酸还原细菌在好氧条件下硝酸还原为N2的作用（ ）
A.
正确
B.
错误
查看完整题目与答案
【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
查看完整题目与答案
【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 l.ran continued its nuclear fuel enrichment.
D.
After the U.N. Security Council dropped its case, and returned it to the International Atomic Energy Agency.
查看完整题目与答案
相关题目：
【单选题】党的“四条路线”是指政治路线、思想路线、组织路线、( )
A.
群众路线
B.
理论路线
C.
制度路线
D.
文化路线
查看完整题目与答案
【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
查看完整题目与答案
【判断题】硝酸盐在硝酸盐还原酶的作用下，还原成亚硝酸盐。()
A.
正确
B.
错误
查看完整题目与答案
【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
查看完整题目与答案
【简答题】Iran tested its first nuclear power plant on _________.
查看完整题目与答案
【简答题】党的“四条路线”是指政治路线、思想路线、组织路线、（）。
查看完整题目与答案
【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.
查看完整题目与答案
【判断题】脱氮作用即硝酸还原细菌在好氧条件下硝酸还原为N2的作用（ ）
A.
正确
B.
错误
查看完整题目与答案
【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
查看完整题目与答案
【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 l.ran continued its nuclear fuel enrichment.
D.
After the U.N. Security Council dropped its case, and returned it to the International Atomic Energy Agency.
查看完整题目与答案