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【简答题】
Before he came we had expected him to help us but when he was with us he didn't do much.
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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】对化学消毒灭菌法的作用原理解释不正确的是( )
A.
使细菌蛋白质凝固变性
B.
使细菌蛋白质分解变性
C.
使酶蛋白失去活性
D.
抵制细菌代谢生长
E.
改变细菌细胞膜的通透性
【单选题】听力原文：M: Have you seen Edward recently? W: Yes, I saw him at the downtown supermarket last week. He said his mother was going to London to see his elder sister. Q: What can we learn from the conversati...
A.
The woman met Edward at the supermarket this week.
B.
Edward's mother was going to Paris.
C.
Edward has an elder sister.
D.
Edward's mother has lived with his elder sister for a long time.
【单选题】According to Edward W. Gregg, it's never too late for women to start exercise.
A.
Y
B.
N
C.
NG
【多选题】Internet 提供了许多受大众欢迎的服务,包括:
A.
WWW （万维网 ）
B.
E-Mail （电子邮件）
C.
FTP （文件传输）
D.
Telnet （远程登录）
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