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【多选题】
下列选项中，水环境现状调查和监测过程中调查时间确定原则说法正确的是( )。A.
评价等级不同，对调查时期的要求有所不同
B.
根据当地水文资料确定河流、湖泊、水库的丰水期、平水期、枯水期，同时确定最能代表这三个时期的季节和月份
C.
冰封期较长的水域，且作为生活饮用水、食品加工用水的水源或渔业用水时，应调查冰封期的水质水文情况
D.
当被调查的范围内面源污染严重，丰水期水质劣于枯水期时，一、二级评价的各类水域应调查丰水期，若时间允许，三级也应调查丰水期
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【单选题】My sister tried her best to___the life in Italy,but failed to make any ___.
A.
adjust to;senses
B.
adapt to;trouble
C.
adapt to;effort
D.
adjust to;difference
【单选题】Last year my sister tried to lose weight, but ______ putting weight back on.
A.
cut up
B.
looked up
C.
ended up
D.
make up
【单选题】My sister tried her best to ____the life in Italy, but failed to make
A.
y ____.
B.
adjust to; senses
C.
adapt to ; trouble
D.
adapt to; effort
E.
adjust to; difference
【单选题】My sister tried her best to ______ the life in Italy, but failed to make any ____________.
A.
ajust to ; senses
B.
adapt to ; trouble
C.
adapt to ; effort
D.
adjust to ; difference
【简答题】假定下表是需求函数Qd=1200-200P在一定价格范围内的需求表。 试求:(1)价格为2~4元的需求的价格弧弹性。 (2)根据给出的需求函数求出P=2元时的需求的价格点弹性。
【单选题】leson 41 Do you call that a hat-(清晰).f4v 1.The writer probably________.
A.
did't like the hat his wife had chosen
B.
liked the hat his wife had chosen
C.
chose a hat for his wife
D.
chose the hat that looked like a lighthouse
【单选题】Sitting opposite my sister and me in the subway who walked alongside us and tried to punch us on Fifth Avenue.
A.
were they the same men
B.
they were the same men
C.
were the same men
D.
the same men were
【单选题】Sitting opposite my sister and me in the subway ____ who walked alongside us and tried to punch us on the Fifth Avenue.
A.
were they the same men
B.
they were the same men
C.
were the same men
D.
the same men were
【单选题】last year , my sister tried to lose weight (减肥), but ______ putting weight back on.
A.
cut up
B.
looked up
C.
ended up
D.
made up
【单选题】(2013·吉林长春三校高三调研)Days later, I tried to get my sister to tell me what was going on, but she ________ say anything.
A.
mustn't
B.
shouldn't
C.
wouldn't
D.
mightn't
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