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【单选题】
单向运动的棘轮齿形是( )A.
梯形齿形
B.
锯齿形齿形
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反馈参考答案：
举一反三
【单选题】A room with a queen sized bed. May be occupied by one or more people.
A.
Queen Bedroom
B.
King Bedroom
C.
Studio
D.
Duplex
【单选题】How many hippos are kept in Queen Elizabeth National Park now?
A.
About 14,000.
B.
No more than 14,000.
C.
No more than 4,000.
D.
About 4,000.
【单选题】At last the Queen decided to ______.
A.
hold a more splendid royal ball
B.
admit the staff to use of the mobile phones when they are on duty
C.
follow the ban of mobile phones at royal dinners
D.
get rid of the old budgie
【单选题】____ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.
A.
As
B.
With
C.
While
D.
If
【简答题】甜蜜素(化学名称为环己基氨基磺酸钠,是食品生产中常用的添加剂。)
【简答题】A．The queen can move more than one square at a time. B．The queen cannot move more than one square at a time. C．The queen cannot move anywhere. D．The king cannot move anywhere.
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