皮皮学，免费搜题
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搜题
【单选题】
食品生产经营中使用的洗涤剂、消毒剂应当符合什么标准?()A.
对婴幼儿无害
B.
对成人无害
C.
对人体安全、无害
D.
对环境无害
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why did the student transfer to Central University?
A.
To take advantage of an academic program
B.
To participate in a student exchange program
C.
To attend a smaller university than the one he was at before.
D.
To benefit from Central University 's international reputation.
【简答题】Why did the student appear for the personal interview?
【单选题】Why did the student surprise the class?
A.
Because he wasn't a senstive person.
B.
Because he was so slow in class.
C.
Because he did the work so fast
D.
Because he was speechless.
【简答题】数据文件组可以分为 ___________ 标志为 ___________ 和 _______________ 。
【简答题】强抽象(名词解释)
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