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【单选题】
按照GB 50311国家标准规定,铜缆双绞线电缆的信道长度不超过多少A.
50米
B.
90米
C.
100米
D.
150米
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举一反三
【单选题】A: I have an appointment to see Dr. Gram for a physical examination. B: ______.
A.
Could you come another time? Dr. Gram is not available right now.
B.
I'm afraid you've got to make another appointment.
C.
Dr. Gram is busy. She has just been. appointed Director of the clinic.
D.
Please have a seat. She is in surgery right now.
【单选题】(2013·北京，26)I have an appointment ________ Dr.Smith, but I need to change it.
A.
to
B.
off
C.
with
D.
from
【单选题】Shall we all drive to the party________ so we don’t get lost?
A.
together
B.
in convoy
C.
all at once
D.
in a convoy
【简答题】阅读理解。 I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at...
【简答题】I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at the t...
【简答题】物体只受一个力作用时,它一定不能处于 状态或 状态。
【单选题】I have an appointment ________ Dr.Smith，but I need to change it. (2013·北京，26)
A.
to
B.
off
C.
with
D.
from
【单选题】I have an appointment（ ）Dr. Smith, but I need to change it.
A.
to
B.
off
C.
with
D.
from
【单选题】Shall we all drive to the party________ so we don’t get lost?
A.
all at once
B.
in convoy
C.
in a convoy
D.
together
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