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【单选题】
眼部化妆品和口唇等黏膜用化妆品以及婴儿用化妆品菌落总数不得大于（ ）。
A.
400CFU/ml或400CFU/g
B.
500CFU/ml或500CFU/g
C.
600FU/ml或600CFU/g
D.
700CFU/ml或700CFU/g
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Until about 30 years ago, language researchers focused their studies on infants who had already begun to babble, according to Jusczyk, who has written a book on how children acquire language titled Th...
A.
By listening to the sounds.
B.
By repeating the sounds.
C.
By listening to their own babbling.
D.
By uttering the sounds.