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【简答题】
精确方法测设水平角β0:1、一般方法测设出水平角∠A0B′;2、三个测回较准确地测出水平角角值β;3、计算改正垂距B′B=( )/206265′′*( ); 若β0<β,则从B′点向()调整至B点,若β0>β,则从B′点向()调整至B点。
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皮皮学刷刷变学霸
举一反三
【单选题】一Hello！Friendship Hotel. Can I help you？ ----Do you have a room with a double bed for Saturday?
A.
available
B.
empty
C.
possible
D.
useful
【单选题】如果人类二倍体基因组用Ava Ⅰ酶切，大约可得到多少片段?( )
A.
3×10 5
B.
3×10 6
C.
3×10 7
D.
7.5×10 5
E.
7.5×10 6
【单选题】In order to attain our objective, it is essential that we will make the best use of the limited resources available.
A.
attain
B.
essential
C.
will make
D.
available
【单选题】— How much do you know about the 3D film technology? — A little. Not until ________ the hot movie Avatar ________ some about it.
A.
did I see; did I begin to learn
B.
I saw; I began to learn
C.
I saw; did I begin to learn
D.
did I see; I began to learn
【简答题】要努力掌握和运用马克思主义,需要我们以()的态度对待马克思主义。
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