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【多选题】
下列化学用语表示正确的是
A.
硫酸氢钾加热熔融的电离方程式:KHSO 4 ==K + +H + +SO
B.
碳酸氢钾水解的离子方程式:HCO +H 2 O H 2 CO 3 +OH
C.
钢铁发生电化腐蚀的正极反应式:4OH -4e ==2H 2 O+O 2 ↑
D.
用石墨电极电解食盐水的阳极反应式:2C1 一2e ==Cl 2 ↑
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【单选题】After ____________ his work, he came to help me with my English.
A.
finished
B.
being finished
C.
finishing
D.
having been finished
【单选题】宝剑锋从磨砺出,梅花香自苦寒来。人类的远大理想,都不能唾手可得。实现远大理想的根本途径是( )
A.
高瞻远瞩、胸怀大志
B.
勇于实践、艰苦奋斗
C.
志存高远、矢志不渝
D.
丰富知识、终身学习
【单选题】依次填入下列横线处的词语,最恰当的一组是( )。 “宝剑锋从磨砺出,梅花香自苦寒来。”人类的美好理想,都不可能__________,都离不开__________、__________的艰苦奋斗。
A.
一蹴而就,百废待兴,不屈不挠
B.
唾手可得,筚路蓝缕,手胼足胝
C.
易如反掌,一穷二白,卓尔不凡
D.
一步登天,峰回路转,坚忍不拔
【单选题】With his eyes _______ on me, he came towards me.
A.
fixed
B.
fixing
C.
to fix
D.
were fixed
【判断题】斟酒时,离客人越远越好。
A.
正确
B.
错误
【单选题】“宝剑锋从磨砺出,梅花香自苦寒来。”人类的美好理想,都不可能______,都离不开______、______的艰苦奋斗。 依次填入下列横线处的词语,最恰当的一组是( )
A.
一蹴而就,百废待兴,不屈不挠
B.
唾手可得,筚路蓝缕,手胼足胝
C.
易如反掌,一穷二白,卓尔不凡
D.
一步登天,峰回路转,坚忍不拔
【单选题】As he came up to me with his face ________ of emotion, so did he depart from me.
A.
hospitability
B.
amend
C.
ensue
D.
void
【单选题】_____ no one in the house, the detective had to leave. [     ]
A.
There is
B.
There was
C.
There being
D.
There to be
【单选题】Which of the following is Edgar Allan Poes detective story?
A.
The Fall of the House of Usher.
B.
The Tell-Tale Heart.
C.
The Raven.
D.
Murders in the Rue Morgue.
【单选题】He came to me with a very long _________ .
A.
ears
B.
face
C.
mouse
D.
hair
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