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【单选题】
安装室内天线定额子目需要套用第( )册定额。
A.
2
B.
3
C.
1
D.
4
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参考答案:
举一反三
【单选题】下列铵盐中,受热分解时不放出 NH3 的是
A.
NH 4 Cl
B.
(NH 4 ) 3 PO 4
C.
(NH 4 ) 2 CO 3
D.
NH 4 NO 3
【单选题】What date is Memorial Day?
A.
May 13th
B.
May 30th
【单选题】April 21 was the national memorial day ____ were killed in Yushu Earthquake on April 14 2010.
A.
in honor of any one who          
B.
in celebration of  those who
C.
in memory of  whoever          
D.
in charge of  no matter who
【判断题】Today, you can still see surviving combat veterans from WWI marching on Memorial Day.()
A.
正确
B.
错误
【单选题】Both Memorial Day and ______ are observed in memory of those who have given their lives for the United States.
A.
Veterans Day
B.
Independence Day
C.
Thanksgiving Day
D.
Labor Day
【单选题】Memorial Day is originally a day on which Americans honor the soldiers who died in .
A.
World War I
B.
World War II
C.
the Independence War
D.
the American Civil War
【判断题】Memorial Day is a federal h oliday.
A.
正确
B.
错误
【单选题】Americans celebrate Memorial Day on the last Monday in May to honor those who have
A.
given their lives for their country.
B.
made great scientific discoveries.
C.
won American great reputation in sports.
D.
donated large amounts of money to the country.
【单选题】无人机飞行摇杆常规操作方式是[1分]
A.
姿态遥控和舵面遥控
B.
自主控制
C.
人工修正
【单选题】Memorial Day is a US national holiday to remember those who gave their lives in the service of the nation. [     ]
A.
set aside
B.
put up
C.
put on
D.
set up
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