题目内容

She was awarded a certificate of ___________ for her piano-playing.

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Children under 14 must be _______________by an adult.

6.We should all try to live in _______ with each other in a friendly eco-system.7.“I believe it is right to _ my family from the public spotlight”, said the famous film star.8.The sight of the disaster victims touched her and filled her with a womanly __.9.She has _ her ambition of becoming a fashion designer after years of hard work.10.As music plays an important role in our life, many music teachers and educators ________ taking up a musical instrument at a young age.

What’s in the advertisement? Match .

求梁弯曲变形的叠加原理是:梁在多个载荷共同作用下的变形,等于各个载荷单独作用下变形的( )

A. 算术和
B. 矢量和
C. 代数和