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【多选题】
在砷盐检查中,H2S是由于一些硫化物在酸性介质中反应后产生的,这些硫化物常常来源于A.
氯化亚锡中
B.
锌粒中
C.
KI中
D.
样品中
E.
由生成AsH3反应的副反应产生
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举一反三
【单选题】Mason's relation to the Federal Bill of Rights was one of ______.
A.
significant but indirect influence
B.
principal authorship
C.
sole authorship
D.
distant and essentially unimportant influence
【多选题】Which of the following can either directly or indirec tly identify all the interfaces for which both 1) OSPF has been enabled and 2) OSPF is not passive?（）
A.
show ip ospf database
B.
show ip ospf interface brief
C.
show ip protocols
D.
show ip route ospf
E.
show ip ospf neighbors
【单选题】下列化合物最容易发生亲核加成反应的是
A.
CH 3 CHO
B.
CH 3 COCH 2 CH 2 CH 3
C.
CH 3 CH 2 COCH 2 CH 3
D.
苯甲醛
【简答题】In consideration of the exclusive right herein granted, Supplier shall in no way direcfiy or indirectly sell or export Products to Territory through any other channel than Distributor and Distributor ...
【单选题】The actual marketing for new issues ______.
A.
is usually done by investment bankers indirectly to the public
B.
is, most of the time, done by the companies directly to the public
C.
is never done by the companies directly to the public
D.
is usually done by the investment banker directly to the public
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