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【多选题】
下列不属于系统误差的有( )A.
水平折光
B.
照准部转动时的弹性带动误差
C.
目标成像质量不佳
D.
仪器脚架的扭转
E.
瞄准误差
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反馈参考答案：
举一反三
【单选题】Finding her car stolen, _______.
A.
a policeman was asked to help
B.
the area was searching thoroughly
C.
it was looked for everywhere
D.
she hurried to a policeman for help
【简答题】Yang Nan, 17, was happy to move to her new home in a northern area of Beijing. She was told that her neighborhood used to be rich farmland planted with vegetables, corn and wheat. But looking at the n...
【单选题】The pregnant woman always sits in the nonsmoking area of restaurants to reduce her exposure ________ smoke.
A.
to
B.
with
C.
in
D.
from
【单选题】Finding her car stolen, _____. [ ]
A.
a policeman was asked to help
B.
the area was searched thoroughly
C.
it was looked for everywhere
D.
she hurried to a policeman
【单选题】下面为不正确的字符串赋值或赋初值方式是 ( )
A.
char*str;str="string";
B.
char str[7]={'s'，'t'，'r'，'i'，'n'，'g'};
C.
char str1[10];str1="string"; //str1为常量，代表str1首元素地址
D.
char strl[]="string",str2[ ]="12345678"; strcpy (str2,strl);
【单选题】Finding her car stolen, ______. [ ]
A.
a policeman was asked to help
B.
the area was searched thoroughly
C.
it was looked for everyone
D.
she hurried to a policeman for help
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