皮皮学，免费搜题
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【单选题】
变量数量中各组频率的总和应该( )。A.
小于 1
B.
等于 1
C.
大于 1
D.
不等于 1
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举一反三
【简答题】W hat is machined suce quality ? How many aspects does it contain?
【单选题】The sigh “No left turn" tells us "()
A.
Don't turn left
B.
Turn left
C.
Go straight
D.
Turn right
【简答题】W hat is machining accuracy? W hat does Machining precision includ e ?
【单选题】A : ______________________ ? B :我 9 岁。wǒ 9 suì
A.
你多大？nǐ duō dà
B.
你几岁？nǐ jǐ suì
C.
你多大年纪？nǐ duō dà niánjì
D.
你多少岁？nǐ duōshǎo suì ？
【简答题】First turn left on the corner and then turn right ______ the fountain. a. in b. on c. at d. for
【多选题】W hat is an essay?
A.
An organized piece of writing
B.
centers around a single topic
C.
the length may vary
【单选题】- _ _ _. -I want a white hat.
A.
How much is a hat?
B.
Can I help you?
C.
Do you have a hat?
D.
What do you want to buy?
【单选题】A：_________？ ( )B：我9岁。 Wǒ suì.
A.
你多大？ Nǐ duō dà?
B.
你几岁？ Nǐ jǐ suì?
C.
你多大年纪？ Nǐ duō dà niánji?
D.
你多少岁？ Nǐ duōshǎo suì?
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【简答题】First turn left on the corner and then turn right ______ the fountain. a. in b. on c. at d. for
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