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【单选题】
PM2.5是指大气中直径小于或等于2.5微米的颗粒物，对人体健康影响较大。我国的《环境空气质量标准》规定，PM2.5的一级标准为24小时平均浓度不超过35微克／米 3 ，二级标准为不超过75微克／米 3 。3月25日，温州等城市的检测结果如下表，则表中城市当日PM2.5达到一级标准的是 [ ]A.
温州、舟山
B.
宁波、湖州
C.
温州、湖州
D.
宁波、舟山
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A.
with
B.
without
C.
on
D.
by
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A.
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B.
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A.
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B.
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C.
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D.
present
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A.
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B.
体内携带细菌且产生临床症状的病人
C.
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D.
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E.
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【单选题】Making yourself a good record If you are an American and you think you might need to borrow money someday，the best thing to do is start early． That’s because just as many employers want to hire only p...
B.
without
C.
on
D.
by
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