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【单选题】
矩形截面梁发生平面弯曲时，横截面的最大正应力分布在（）。A.
上、下边缘处
B.
左、右边缘处
C.
中性轴处
D.
两端
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举一反三
【单选题】—David, these are my friends, Bob and Mike. —______ [ ]
A.
How are you?
B.
Thanks.
C.
What's your name?
D.
Nice to meet you!
【单选题】These are my friends. (他们的) names are Lily and Lucy.
A.
They
B.
Them
C.
Their
D.
Theirs
【简答题】who are these people? are my friends , sylvia and Jean.
【单选题】—Nancy, these are my friends, Anna and Mona. —_____ [ ]
A.
How are you?
B.
What's your name?
C.
Nice to meet you!
D.
Thank you.
【简答题】阅读短文，根据短文内容判断正误，正确的写'T'，错误的写'F'。 These are my friends. This is Maomao. She's nice, but she's a bit shy. This isXiaoyong. He is a clever pupil. This is Amy.She is very cute. This is Sam. He is cool and...
【单选题】使用过期全年定期乘车证,从有效期终了的次日起至发现违章日期止,票面填写的乘车区间在一个铁路局以内的,加收罚款按每日乘车( )计算票价。
A.
50 km
B.
100 km
C.
150 km
D.
200 km
【单选题】— Are these your cousin? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> — No, ____aren ’ t. These are my friends.
A.
these
B.
those
C.
they
D.
that
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