【单选题】【消耗次数：1】
实验室常用二氧化锰与（ ）反应制取氯气。
①
浓盐酸
②
稀硝酸
③
浓硝酸
④
稀盐酸
参考答案：
复制
纠错
相关题目
【单选题】
二氧化碳被称为温室气体，是因为二氧化碳能（）。
①
A.吸收太阳辐射，使人体增温
②
B.破坏臭氧，使到达地面的紫外线增多
③
C.强烈地吸收地面放出的长波辐射
④
D.通过光化学反应向大气中释放热能
随机题目
【单选题】
AlthoughAnneishappywithhersuccess,shewonders_____willhappentoherprivatelife.
①
that
②
what
③
it
④
this
【单选题】
______ you are leaving tomorrow, we can eat dinner together tonight.
①
For
②
Since
③
Before
④
While
【单选题】
The residents, _____had been damaged by the fire, were given help by the Red Cross.
①
all of their homes
②
all their homes
③
whose all homes
④
all of whose homes
【单选题】
If motorists do not observe the traffic regulations, they will be stopped, ticked, and _______.
①
have to pay a fine
②
to pay a fine
③
fined
④
fired
【单选题】
It is better to die ones feet than _______.
①
living on ones knees
②
live on ones knees
③
on ones knees
④
to live on ones knees
【单选题】
But the houses were cold, closed,______, and I ran on until I heard Jeremys screams behind me announcing that our attackers had fled.
①
unfriendly
②
unfriend
③
not friend
④
not friendly
【单选题】
Outsideofclass,teachersplanlessons,gradepapers,and_____withstudentstodiscusstheirprogress.
①
met
②
meeting
③
to meet
④
meet
【单选题】
Without entering the body and______damage, the CT is far superior to the X-ray or exploratory surgery.
①
cause
②
causing
③
caused
④
to be caused
【单选题】
HelenKeller,whowasbothblindand______,overcameherinabilitywiththehelpofherteacher,AnnSullivan.
①
deafness
②
deafening
③
deaf
④
deafened
【单选题】
Judylikescampinginthewoods,hikinginthemountaintrails,and_____.
①
canoeing
②
canoes
③
to canoe
④
canoed