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【单选题】
What is the greatest danger to life on Earth?
A.
Collision with small high-speed missiles.
B.
Collision with an astronomical body.
C.
Collision with stones from the sky.
D.
Collision with spacecrafts.
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参考答案:
举一反三
【单选题】锥体交叉位于锥体的
A.
上方
B.
下方
C.
左侧
D.
右侧
E.
两侧锥体之间
【单选题】锥体交叉位于
A.
延髓上端
B.
脑桥
C.
延髓和脊髓交界处
D.
中脑
E.
无上述情况
【判断题】,马氏体的显微组织中,含碳量低马氏体断面形状呈针状,其硬度高而脆性大。
A.
正确
B.
错误
【单选题】What does the passage mainly talk about?
A.
How American goods axe produced.
B.
How American consumers buy their goods.
C.
How American economic system works.
D.
How American businessmen make their profits.
【单选题】It is reported that Latin American customers talk ______ on the phone as people in North America.
A.
two to four times as long
B.
two times four as long
C.
two to four time as long
D.
two to four times longer
【单选题】If an American is invited to talk something about entertainment industry, he or she might not mention ______.
A.
Broadway
B.
Oscar
C.
Grammy
D.
West Point
【单选题】锥体交叉位于
A.
延髓
B.
脑桥
C.
延髓和脊髓交界处
D.
中脑
【单选题】If an American is invited to talk something about entertainment industry, be or she might not mention______.
A.
Broadway
B.
Oscar
C.
Grammy
D.
West Point
【单选题】锥体交叉位于
A.
5
B.
延髓上端
C.
脑桥
D.
延髓和脊髓交界处
E.
中脑
【单选题】There will be a talk ____ American history this afternoon. [     ]
A.
for
B.
on
C.
in
D.
with
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