皮皮学，免费搜题
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【单选题】
细胞膜的化学成分主要有A.
无机盐
B.
蛋白质与核酸
C.
糖类和脂类
D.
脂质、蛋白质和糖
E.
酶与维生素
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皮皮学刷刷变学霸
举一反三
【单选题】What made it difficult to follow the man's advice?
A.
She had too many responsibilities at home.
B.
She didn't want to lose her job.
C.
She had run out of tablets.
D.
She didn't understand what she was told to do.
【简答题】填空：If you feel stressed by responsibilities at work, you should take a step back and identify英语知识运用：填空 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。 If you feel stressed by responsibilities at work, you should...
【单选题】语调是指讲话时句子里语音高低升降的配置，表现为说话的腔调。在口语表达中，语句都有一定的语调。不同的语调可以表达不同的情感。例如：（）可以表达兴奋、激动、惊叹、疑问等感情状态。
A.
升调
B.
直调
C.
平调
D.
降调
【简答题】阅读文章，回答题 If you feel stressed by responsibilities at work， you should take a step back and identify （识别）those of 41 （great）and less importance. Then， handle the most important tasks first so you’ll fe...
【单选题】Responsibilities at home and work _____ his time.
A.
burden
B.
promise
C.
eat into
D.
cram
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