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【判断题】
非必需氨基酸是人体不需要的氨基酸。A.
正确
B.
错误
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举一反三
【单选题】When I was (at) the grocery store, I (realized) that the prices of (many items) (had been risen).
A.
at
B.
realized
C.
many items
D.
had been risen
【单选题】--I believe you've seen the exhibits in the showroom. What particular items are you interested in? --____________________________.
A.
I'm interested in your price.
B.
I'm interested in your hardware products.
C.
I'm interested in your production process.
D.
I'm interested in your order
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