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【单选题】
下列各配体中能作螯合剂的是A.
F -
B.
H 2 O
C.
NH 3
D.
C 2 O
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举一反三
【单选题】SS4型电力机车上普通小型直流电动机检修要求：电刷间隙为( )。
A.
1.3～2.5 mm
B.
1．5～2.5 mm
C.
1.8～2.5 mm
D.
2～2.5 mm
【单选题】企业本月发生的电话费尚未支付的经济业务,属于( )的变化业务。
A.
收入发生引起资产增加
B.
收入发生引起负债减少
C.
费用发生引起资产减少
D.
费用发生引起负债增加
【单选题】ss4型电力机车上普通小型直流电动机检修要求：电刷间隙为( )。
A.
1.3~2.5 mm
B.
1.5~2.5 mm
C.
1.8～2.5mm
D.
2～2.5 mm
【单选题】.____, he does get annoyed with her sometimes.
A.
Although much he loves her
B.
Much although he loves her
C.
as he loves her much
D.
Much as he loves her
【单选题】Sharing with someone who understands and loves her _________her from the _________ and _________ her with the emotional tools necessary to handle the trials and tribulations of the _________ world.
A.
heals，outside，equips，inside
B.
heals，inside，equips，outside
C.
equips，inside，heals，outside
D.
equips，outside，heals，inside
【单选题】ss4型电力机车上普通小型直流电动机检修要求:电刷间隙为( )。
A.
1、3~2、5 mm
B.
1、5~2、5 rain
C.
1、8～2、5mlTl
D.
2～2、5 mm
【单选题】Erin loves her brother, and he loves her too because she pays his bills.
A.
complex sentence
B.
compound sentence
C.
simple sentence
D.
compound complex sentence
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