【单选题】【消耗次数：1】
精基准是用（ ）作为定位基准面。
①
未加工表面
②
复杂表面
③
切削量小的
④
加工后的表面
参考答案：
复制
纠错
相关题目
【单选题】
当工件以某一已加工表面定位可以比较方便地加工出其余各表面时，应尽可能选择该已加工表面作为统一的精基准来加工出工件上的多个表面，该原则称为（ ）
①
基准重合原则
②
基准统一原则
③
自为基准原则
随机题目
【单选题】
By the end of last month, she ____ over five hundred letters of congratulation from different parts of the world.
①
would received
②
has received
③
had received
④
receive
【单选题】
Mr. Downham asked the public their views on the two subjects currently ____ discussion.
①
with
②
at
③
to
④
under
【单选题】
People just say it out of politeness and they don’t really ____ it. ?
①
realize ?
②
mean ?
③
think ?
④
regard?
【单选题】
—Don’t forget to come to my birthday party tomorrow.—I ____ .
①
don’t
②
won’t
③
can’t
④
haven’t
【单选题】
Fortunately, Jack was only slightly injured in the traffic ____ .
①
incident
②
event
③
case
④
accident
【单选题】
I want to paint the wall, but I can’t ____ on the color. ?
①
design ?
②
decide ?
③
desire ?
④
detect?
【单选题】
The
book I ____ the other day can be found nowhere.
①
borrow
②
borrowed
③
are
borrowing
④
was
borrowing
【单选题】
Her parents objected to ____ that farmer, though he has a lot of money.?
①
her marrying ?
②
marrying ?
③
marry ?
④
her marrying with?
【单选题】
Tom, what did you do with my documents? I have never seen such a____ and disorder!
①
mass
②
mess
③
guess
④
bus
【单选题】
—Could I borrow your dictionary? —I’d get it for you ____I could remember who last borrowed it.
①
except that
②
unless
③
only if
④
if only