缩松或热应力、裂纹的产生,零件壁厚应尽可能均匀。所以,设计零件外璧和内壁,外壁和肋,其厚度均应相等。
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1.__________got in the wheat than it beganto rain heavily.a. No sooner had theyb. No sooner have theyc. No sooner theyd. No sooner they had2. No sooner ________than I realized I’d left the document at home.a. havewe sat down b. had we sat downc. we had sat downd. we sat down3. Only by adopting more creative approaches _____to overcome present-daychallenges. (2016-06)a. we can hope c. hope we canb. can we hope d. can hope we4. Only after we really understand your business _______a suitable insuranceprogramme for you.a. can we recommendb. recommend we canc. we can recommendd. Recommend can we5. Hardly ____ his speech when a young woman in the audience roseto make aprotest.a. George finished c. George had finishedb. does George finish d. had George finished6. Only by being open-minded and willing to try new things _______ happy in Arts and Sciences. (2018-12)a. a student truly can be b. a student can truly bec. truly a student can be d. can a student be truly7. They opened a new store in our city, but not until last week _______ it. (2018-06)a. we visited b. we would visit c.did we visit d.have we visited8. Onlyafterthe secretary sawthe train disappear in sight _____ the railway station. (2015-12)a.he leaves b.has he left c.he left d.did he leave9. Only by adopting the highest standards of integrity ______ the trust of our clients and the companies we work with. (2017-12)a.we earn b.can we earn c.we can earn d.we will earn10. Not until that day_____ the importance of good manners in a job interview. (2015-06)a. I realized b.I have realized c. did I realize d.will I realize
The sick boy _________to hospital by the police yesterday.
A. is taken
B. was taken
C. takes
D. took
Do you have any problems if you_______ this Job.A,offer,be well,offer sear,offered D will be offered
A. offer
B. will offer
C. are offer
D. will be offered
I want to be a doctor.Doctors________ in every part of the world,I think .Need be are needed,are needing D will need
A. need
B. are needed
C. are needing
D. will need