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【单选题】
有甲、个,它们的质量之比为 m 甲∶ : m 乙 =5∶4 ,体积之比为 V 甲 ∶ V 乙 = 1∶2,则这两种金属的密度之比 ρ 甲 ∶ ρ 乙 等于( )A.
2:5
B.
5:2
C.
8:5
D.
5:8
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举一反三
【单选题】A ______ politician, he took advantage of every speaking engagement to attack his rivals.
A.
vulgar
B.
eloquent
C.
cordial
D.
shrewd
【简答题】减少犯罪和反社会行为
【单选题】In ______, Robert Bartholomew (1831–1904) noticed that his 30-year-old mentally disabled patient, Mary Rafferty, had a two-inch hole in her skull caused by a cancerous ulcer. He took advantage of this...
A.
1865
B.
1870
C.
1874
D.
1880
【单选题】调查和处理治安案件，是公安机关贯彻（）及相关法律、法规，教育、处罚违反治安管理行为人，规范、引导社会成员的行为，预防与减少违法犯罪的一种重要手段。
A.
治安管理处罚法
B.
刑法
C.
合同法
D.
税法
【简答题】What
do you think is the secret of Jack’s success? He
took advantage of ___________________________.
【简答题】He took advantage of the summer vacation by doing part-time work in a ___________.
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