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【多选题】
以下各项中对于社会舆论的特点表述正确的有（）。A.
社会舆论的主体是社会公众
B.
社会舆论的对象是公众所关注的事物或问题
C.
社会舆论具有多样化和一致性
D.
社会舆论具有“软”约束力作用
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【简答题】请大家从不同角度试着自拍,选一张自己最美的照片,美化并上传。
【单选题】A boy throws a steel ball straight up. Consider the motion of the ball only after it has left the boy’s hand but before it touches the ground, and assume that forces exerted by the air are negligible....
A.
a downward force of gravity along with a steadily decreasing upward force
B.
a steadily decreasing upward force from the moment it leaves the boy’s hand until it reaches its highest point; on the way down there is a steadily increasing downward force of gravity as the ball gets closer to Earth
C.
an almost constant downward force of gravity along with an upward force that steadily decreases until the ball reaches its highest point; on the way down there is only an almost constant downward force of gravity
D.
an almost constant downward force of gravity only.
E.
none of the above. The ball falls back to ground because of its natural tendency to rest on the surface of the Earth.
【简答题】Task 2 John, the HR Manager, is talking with Sami, the Secretary who has a bad relationship with her colleagues. Listen to the conversation and fill in the blanks with what you hear. S: May I com...
【简答题】填空(必要时改变形式) lose through positive leap negative pace fit arise Scott ____ to the rescue when he spotted the youngster in difficulty. Problems ____ over plans to build a new supermarket i...
【简答题】JF132 交流发电机前、后盖用铝合金铸造,采用铝合金的目的是 。
【多选题】下列关于芳纶纤维说法正确的是
A.
Kevlar-29 主要用作轮胎帘子布
B.
Kevlar-49 具有良好的低温特性，耐高温老化性能也很好
C.
Kevlar-149 具有比 Kevlar-49 更好的抗吸湿性
D.
芳纶纤维在湿热环境下，性能下降明显，不适用于做飞机主承力结构
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