【单选题】
某一配合的最大过盈为-30μm ，配合公差为40μm<img width=12 height=22 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml11200\wps1.png style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>则一定是（）配合。
①
过盈
②
过渡
③
间隙
④
不能确定
【单选题】
如果某消费者的<img width=87 height=37 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif alt=http://mooc1-api.chaoxing.com/ananas/latex/p/2639229 word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>，他会（ ）。
①
增加X商品的购买，减少Y商品的购买；
②
减少X商品的购买，增加Y商品的购买；
③
同时增加X商品和Y商品的购买；
④
同时减少X商品和Y商品的购买。
【单选题】
Once our chickens started laying eggs, we had such a
____ of eggs that we were giving many away to our
neighbors.
①
output
②
surplus
③
production
④
plenty
【单选题】
Once our chickens started laying eggs, we had such a _____of eggs that we were giving many away to our neighbors.
①
output
②
surplus
③
production
④
plenty
【单选题】
He cannot ____ a car, for he does not earn much money.
①
obtain
②
afford
③
donate
④
consume