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【单选题】
立体声有频信号的频率范围是A.
50~20000HZ
B.
200~3400HZ
C.
50~7000HZ
D.
300~3000HZ
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【简答题】When there are small children around, it is necessary to put bottles of pills out of _____. (A) reach (C) hold (B) hand (D) place
【单选题】When there are small children around, it is necessary to put bottles of pills out of
A.
hand
B.
hold
C.
place
D.
reach
【简答题】When there are small children around, it is necessary toput the bottles of pills out of _____. A) reach B) hand C) hold D) place
【简答题】What's the _(天气)like in Beijing? My favorite _(水果)is apple. Autumn is the _(收获)time. The flowers_ _(生长出来)in spring. I was late yesterday_ _(因为)the bad traffic. In spring,everything _(开始)to grow. Doing...
【简答题】When there are small children around, it is necessary to put bottles of pills out of ________. A) reach B) hand C) hold D) place
【单选题】When there are small differences between the heights of two successive high tides or two successive low tides，the tides are called ().
A.
Diurnal
B.
Semi-diurnal
C.
Solar
D.
Mixed
【简答题】I was late yesterday (因为) the bad traffic.
【简答题】根据句意，首写字母和汉意写单词。 1. I was late yesterday, and my teacher was very a__________. 2. Please r_________ to bring your homework to school from Monday to Friday. 3. Jack often swims in the swimming p_______...
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