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【单选题】
合十礼通常用于( )。A.
欧洲
B.
东南亚
C.
中国
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反馈参考答案：
举一反三
【单选题】用原子吸收光谱法测定生物材料中微量镉时，通常选择的分析线是
A.
第一激发态与基态之间发射的共振线
B.
第二激发态与基态之间发射的共振线
C.
第三激发态与基态之间发射的共振线
D.
第一激发态与第二激发态之间发射的共振线
E.
第一激发态与第三激发态之间发射的共振线
【单选题】This school doesn't have ______ it did ten years ago. [ ]
A.
so many students as
B.
many as students as
C.
such few students as
D.
so many as students as
【单选题】In those days, few people liked dancing,_____?
A.
didn’t they
B.
did they
C.
don’t they
D.
were they
【单选题】What kind of help will the conselors offer to those students?
A.
Refine their interviewing techniques.
B.
Arrange their work schedules.
C.
Select appropriate courses.
D.
Write cover letters.
【单选题】用原子吸收光谱法测定时,通常选择的分析线是
A.
第一激发态与基态之间发射的共振线
B.
第二激发态与基态之间发射的共振线
C.
第三激发态与基态之间发射的共振线
D.
第一激发态与第二激发态之间发射的共振线
【单选题】In those days, few people liked taking a bus, _____? [ ]
A.
didn't they
B.
did they
C.
don't they
D.
were they
【单选题】When the students did badly， the teacher became really ________ and didn‘t smile for weeks.
A.
depressed
B.
depressing
C.
bored
D.
boring
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