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【单选题】
下列情况引起随机误差的是A.
重量法测定SIO2时，硅酸沉淀不完全
B.
使用腐蚀了的砝码进行称量
C.
滴定管读数最后一位估计不准
D.
所用试剂中含有干扰组分
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举一反三
【单选题】(2017.23)If you fight hard , k now who you are , and are proud of who you are , you've got a good of winning .
A.
choice
B.
chance
C.
decision
D.
direction
【单选题】The best title for the passage is ______.
A.
Vitamin E Scores for Old People
B.
Vitamin E Fights Cancer
C.
You Need Vitamin E
D.
How to Keep Healthy
【单选题】Traffic with criminals is dangerous.
A.
dealing with criminals
B.
tracking the criminals
C.
fighting the criminals
D.
transporting criminals
【简答题】完形填空。 True forgiveness is one of the most remarkable qualities a human can possess! In the fighting between two countries in the 1970s, a young man was walking from one village to the next when he was...
【单选题】For a teacher to facilitate learning effectively in the classroom, he or she must...Which of the following is one of the main roles of the teacher?
A.
Concentrate on teaching to the advantage of the brightest pupils in the classroom .
B.
Do all the talking in the classroom .
C.
Apply strict procedures outlined in his/her teaching/lesson plan.
D.
Have a clear knowledge of who his/her learners are.
【单选题】He outlined his plan and then_______ to explain them in more detail.
A.
went
B.
proceeded
C.
kept
D.
progressed
【多选题】马克思主义理论同中国实际相结合产生的两大理论成果,两大理论成果之间既有不同点,也有共同点。共同点在于它们( )
A.
都是中国共产党集体智慧的结晶
B.
都是对中国革命、建设、改革经验的科学总结
C.
都有马克思列宁主义在中国的运用和发展
D.
都包含了中华民族的优秀思想
【单选题】Sometimes, kids have extra challenges making friends, even if you're doing everything fight as a parent. All children are capable of having friends, although high self-esteem really helps them succeed...
A.
Cards.
B.
Children.
C.
Children's feelings.
D.
Children's friends.
【单选题】Mr. Black would rather __________than _________on Christmas eve because of the crazy spray snow fight everywhere.
A.
stay at home, to go out
B.
stay at home, go out
C.
to stay at home, go out
D.
to stay at home, to go out
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