According to the author, the city should______.
A. insist its plan to build trash stations in each district
B. establish new high-tech, low-smell facilities
C. build stations only in low-income communities
D. reach an agreement with the Upper East Side of Manhattan
查看答案
下列指标中，()不能用来衡量通货膨胀率。
A. 恩格尔系数
B. 生产者物价指数
C. 国内生产总值物价平减指数
D. 消费者物价指数
听录音，回答以下问题
A. Family groups.
B. Larger groups.
Classmates groups.
D. Friendship groups.
A.Watching it without the subtitles.B.Listening without watching it.C.Be
A. Watching it without the subtitles.
B. Listening without watching it.
C. Being familiar with the scenes.
D. Reading after the characters.
某种燃烧装置采用重油作燃料，重油成分分析结果如下(按质量)：C 88.3%；H 9.5%；S 1.6%；H2O 0.05%；灰分0.10%。试确定燃烧1kg重油所需要的理论空气量。
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