Study the following picture carefully and write an essay entitled "Celebrating Mothers Day". In your article, you should cover the following points. 1) describe the drawing, 2) interpret its symbolic meaning, and 3) give your comment. You should write 160—200 words neatly.
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This is the reason______I am not in favor of revising the plan.
A. which
B. why
C. because
D. for
The advertisement made by Microsoft shows that _____.
A. a great number of jobs have been created in the U.S..
B. foreign workers are favored over domestic workers.
C. working visa is very hard to be issued to foreign workers.
D. many domestic workers will lose their jobs to foreigners.
聚氯乙烯防水卷材、氯化聚乙烯防水卷材每类产品按理化性能分类分为: ()
水泥出厂后 () 应复检，复检就是按照国家标准进行出厂检验，考察是否满足相关的国家标准。主要有Mgo,so3,cl-,k2o,Na2o等化学成为是否超标，强度、凝结时间、安定性是否符合国家标准。
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