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【单选题】
用原子吸收法测定元素 M , 试样的吸收值读数为 0.435, 现于 9 份试样溶液中加入 1 份 100×10 -6 mol/L 的标准溶液 , 测得吸收值为 0.835, 计算试样溶液中 M 的浓度是多少 ? ( )A.
9.81×10 -7 mol/L
B.
9.81×10 -6 mol/L
C.
9.81×10 -4 mol/L
D.
9.81×10 -5 mol/L
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举一反三
【单选题】The girl ______in red is a successful writer, who _______ Tom last month.
A.
dressed; got married with
B.
dressing; married to
C.
dressing; was married to
D.
dressed; married
【单选题】听力原文：How long can we feel acceleration? (14)
A.
For only a short time.
B.
For a long time.
C.
For all our life.
D.
For half a day.
【单选题】They said," We've lived here for a long time."
A.
They said they have lived theere for a long time.
B.
They said they lived here for a long time.
C.
They said they had lived there for a long time.
【单选题】— I need something for cutting the paper. — Oh, you want a knife? OK, I'll get ____ for you. A. it B. that C. this D. one
A.
1
B.
2
C.
3
D.
4
【单选题】为体温过低病人采取保暖措施时,首先应:
A.
给予热饮料使病人感觉舒适
B.
加盖被保温
C.
多加衣服保暖
D.
足部放置热水袋提高体 温
E.
应用空调使病室温度提高至24～26oC
【简答题】单词填空 1 . Instead , she is ________( 挣得 ) £ 6 , 500 a day as a model in N ew York. 2 . I didn't want to live the rest of my life with this ________( 外加的 )weight any more. 3 . But he quickly found that ...
【单选题】Men who were widowed had a survival rate as low as those who had never been married.
A.
Right
B.
Wrong
C.
Not mentioned
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