更多"If separating effect is not good, w"的相关试题:
[单项选择]Can we change the location for the tung-oil（）that for the gum rosin?
A. by
B. for
C. into
D. with
[单项选择]If separating effect is not good, which measure should be taken （）
A. working at intervals and properly heating
B. warming up to 70℃, increase water supply flow
C. improving impulse of water supply
D. reducing water supply flow
[单项选择]When we write, we must write as（）as we can.
A. careful
B. carefully
C. more careful
D. more carefully
[单项选择]Usually we take the cooling effect of the air flown through the cylinder during the overlap period as（）
A. inevitable
B. harmful
C. helpful
D. unacceptable
[单项选择]As we were driving along we saw a good restaurant, so we stopped（）dinner.
A. having
B. to have
C. having been
D. to be had
[单项选择]The （） can tell us how much heat we can get from the burning of an oil.
A. viscosity
B. flash point
C. cetane number
D. calorific value
[单项选择]What we need（）good textbooks.
A. is
B. are
C. have
D. has
[单项选择]Good afternoon. Can I help you?（）
A. No. I don't think so.
B. Thank you.
C. I need to buy a birthday present for my son.
D. Yes. I think so
[单项选择]（）good health, one can achieve anything.
A. Giving
B. Having given
C. Given
D. Having been given
[单项选择]Finally, the Christmas season is over. We can take a long breath, put up our feet, sip from a cup of good tea and relax. The frenzy, starting from Black Friday right after Thanksgiving until Christmas Eve, of gift shopping, buying, wrapping, giving, receiving, opening, returning... is exhaustive and time-consuming, but it takes place every year.
There is considerable difference between the cultures in China and western countries when it comes to gift giving. In China, it is not polite to open a gift in front of the gift giver, and gift is only looked at after the guest has left. Here in America, gift givers always wrap their gifts, large or small, priceless or valueless, carefully and decorate them with colorful ribbons and little pretty paper flowers; and the lucky receiver is expected to open the gift right away in front of the giver, with great eagerness and curiosity, and should always express appreciation with the all time truthful comment, "this is just exactly what I wanted!" Well, as a matter of fact, most people would take their "always wanted" gifts back to the store to exchange for something they really wanted.
Finding a gift for somebody, even a close family member, you"ll have to know what the person likes and shop for days before you can locate the perfect gift. But, still the person may not like the gift from you. Nowadays, stores would provide two copies of the receipts for anything they sell as a gift, one of which is included in the gift package so that the receiver can come back for an exchange. I know, it was unthinkable to cash out gift you get, but, times are different. Another good way to avoid all that shopping hassle is to purchase a gift card from one of the stores and send it to your niece, nephews, or a family member, so that they can get whatever they want or even keep the money.Finding a gift for somebody is a(n)（）.
A. easy job
B. tough task
C. must-be job
D. arranged task
[单项选择]From the passage, we can learn that the simplest controller action is（）
A. two-step controller action
B. proportional, controller action
C. integral controller action
D. derivative controller action
[单项选择]This is the problem（）we have no good solution as yet.
A. to that
B. which
C. for which
D. to which
[单项选择]We can（）the possibility of total loss from our calculations.
A. exclude
B. prevent
C. excuse
D. discard
