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【判断题】
土壤胶体分为无机胶体、有机胶体和有机无机复合胶体三类。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】In developed countries, before toxic chemicals are released into rivers and lakes, they should be trea- ted in order to avoid ______.
【判断题】因为银行对账单上对银行存款的每一笔经济业务都反映的详细且真实,所以可以用银行对账单代替企业的银行存款日记账。这样,大大减少每日的工作量,且免去每月对账和编制银行存款余额调节表的繁琐。( )
A.
正确
B.
错误
【单选题】Toxic chemicals are polluting our oceansand ________ our rivers and ________ .
A.
contaminating; streams
B.
contaminating; stream
C.
contaminate; streams
D.
contaminate; stream
【单选题】document.write("\" 复仇者 \" 联盟 "); 这一句代码的输出结果是
A.
复仇者联盟
B.
" 复仇者 " 联盟
C.
\" 复仇者 \" 联盟
D.
语法有误，程序报错
【单选题】In developed countries, before toxic chemicals are released into rivers and lakes, they should be treated in order to avoid ______.
A.
cleanness
B.
air pollution
C.
water pollution
D.
explosion
【判断题】In developed countries, before toxic chemicals are released into rivers and lakes, they should be treated in order to avoid water pollution.
A.
正确
B.
错误
【单选题】Dafforn considers the discovery of the toxic chemicals in the trenches disturbing because _____.
A.
we are paying little attention to the impacts of sea exploration
B.
we can’t foresee how long the chemicals will influence our life
C.
we have no idea about the source of the high levels of toxic chemicals
D.
we don’t know completely what impacts the chemicals may bring to us
【判断题】Since many organic chemicals are toxic, the polymers made from them are also toxic.
A.
正确
B.
错误
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