题目内容

我国低产田的主要原因是干旱、涝洼、盐碱与土层薄。()

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菱角原产于中国。()

According to Sir Richard Paget, the right order of development of human communication

A. sounds, food, hunting, writing, gambling, online chatting
B. gestures of the hands, gestures of the mouth, whispered speech, voiced speech
C. gestures, eye movements, writing, speech, telegraph, internet
D. shouting, whispers, hands movements, horse riding, computers

植物体内磷大部分存在于籽粒中,而钾的绝大部分在茎秆中。()

弗里茨?阿德勒因全面否认爱因斯坦在物理学领域做出的成果而著名。()

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