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【单选题】
赋值语句:a=123+Mid("123456",3,2)执行后,a变量的值为()A.
"1234"
B.
123
C.
12334
D.
157
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皮皮学刷刷变学霸
举一反三
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B.
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D.
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A.
蛋白质互补
B.
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C.
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D.
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A.
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B.
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C.
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D.
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【单选题】关于蛋白质互补作用,下列说法错误的是( ):
A.
适当的蛋白质按比例混合食用，可提高混合蛋白质的生物价
B.
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C.
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D.
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