
【名词&注释】
植物蛋白(vegetable protein)、油料作物(oil crop)、金属镁(magnesium metal)、标准状况(standard condition)
[单选题]大豆原产我国,是重要的油料作物和食用植物蛋白来源。( )
A. 正确
B. 错误
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举一反三:
[单选题]
A. rag
B. hat
C. pocket
D. counter
[单选题]
A. get on with
B. get rid of
C. put up with
D. take hold of
[单选题]What can be inferred from the passage?
A. Some place names in Singapore are the same as in Britain.
B. Some places in Singapore are named for military purposes.
C. The way Singaporeans name their places is unique.
D. Young Singaporeans have forgotten the pioneers.
[单选题]下列叙述正确的是(用NA代表阿伏加德罗常数的值)
A. 2.4g金属镁变为镁离子时失去的电子数为0.1NA
B. 1molHCl气体中的粒子数与0.5 mo1/L盐酸中溶质粒子数相等
C. 在标准状况(standard condition)下,22.4LCH4与18gH2O所含有的电子数均为10 NA
D. CO和N2为等电子体,22.4L的CO气体与lmol N2所含的电子数相等
[单选题]what has the woman decied to do on Sunday afternoon?
A. to attend a wedding.
B. To visit an exhibition
C. To meet a friend
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