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【单选题】
通常在蒸发温度不太低和大制冷量的情况下选用（）。A.
螺杆式冷水机组
B.
离心式冷水机组
C.
活塞式冷水机组
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【简答题】We will inform our customers （） the arrival of the shipment ourselves.
【简答题】As the weather was fine, we decided to climb the mountain.
【简答题】In the summer of 2011 my friend and I decided to go to Italy for a holiday and we decided to travel there without going through a travel agency. You know, you would not be seen among the tourists and ...
【简答题】(It's a good idea if we) inform all our customers by e-mail._______________________ inform all our customers by e-mail
【单选题】This house is really expensive. We are looking for an expert to() it before we decided to buy it.
A.
depend
B.
appraise
C.
demand
D.
apparent
【单选题】Rarely ()the opportunity to inform. our customers of such good news.
A.
had we have
B.
do we have
C.
we will have
D.
did we had
【判断题】Emails can be used to inform customers about a product, but not to collect their feedback.
A.
正确
B.
错误
【简答题】We will inform our customers ____________ arrival of the shipment ourselves.
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