The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for____.
A.The sun to be at the opposite side of the moon
B.The moon to be at the opposite side of the earth
C.The moon to be at its apogee
D.The sun and the moon to be on the same side
第1题:
A ______ talk is too long for those children.
A. two hours
B. two hour's
C. two-hour
D. two-hours
第2题:
若要在GZ表中,选出年龄在20至25岁的记录,则实现的SQL语句为()
ASELECT FROM GZ 年龄 BETWEEN 20,25
BSELECT FROM GZ 年龄 BETWEEN 20 AND 25
CSELECT #FROM GZ 年龄 BETWEEN 20 OR 25
DSELECT *FROM GZ 年龄 BETWEEN 20 AND 25
第3题:
5、SMPTE时间码广泛应用在目前的影音工业中,主要参数格式是:
A.Frames:Second:Minutes:Hours
B.Hours:Frames:Minutes:Second
C.Hours:Minutes:Frames:Second
D.Hours:Minutes:Second : Frames
第4题:
12. About_______ of the workers in the factory were born in the __________.
A. two- thirds;1970
B. two- thirds ; 1970s
C. two-third ; 1970
D. two-third ; 1970s
第5题:
SMPTE时间码广泛应用在目前的影音工业中,主要参数格式是:
A.Frames:Second:Minutes:Hours
B.Hours:Frames:Minutes:Second
C.Hours:Minutes:Frames:Second
D.Hours:Minutes:Second : Frames
第6题:
以下程序产生的是占空比____的时钟信号? parameter High_time = 5,Low_time = 20; reg clk; always begin clk = 1; #High_time; clk = 0; #Low_time; End
A.20%
B.10%
C.40%
D.50%