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【单选题】
在bootstrap中,下列的类( )可以使一个元素在打印时隐藏。A.
visible-print-block
B.
visible-print-inline
C.
hidden-print
D.
print-hidden
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反馈参考答案：
举一反三
【单选题】下列不符合浆细胞特点的是
A.
胞质丰富，呈嗜碱性
B.
细胞核居中，异染色质呈辐射状
C.
胞质内含大量平行排列的粗面内质网
D.
合成分泌免疫球蛋白
E.
由B细胞转化而来
【单选题】以下关于闸机的布置原则正确的是?
A.
闸机应当紧邻出入口，便于乘客进出站
B.
闸机应当紧邻电扶梯，便于乘客进站后乘车
C.
闸机应当分散分布在站厅各个位置，便于各处的乘客进出站
D.
闸机应当集中布置，便于管理
【单选题】We may infer that during the summer holidays______.
A.
few students will stay in the university
B.
no breakfast will be served on weekends
C.
the student newspaper will sell more copies
D.
there will be a concert or a film each Wednesday
【单选题】What will the man most probably do next?
A.
Fill out an application.
B.
Go back to the university to get his I
C.
Go to see his friend.
D.
Take a written exam and an eye exam.
【单选题】What will the man must probably do next?
A.
Fill out an application.
B.
Go back to the university to get his ID
C.
Go to see his friend.
D.
Take a written exam and an eye exam.
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