皮皮学，免费搜题
登录
搜题
【单选题】
低剂量 虫体感染预防寄生虫病,其不足在于( )。A.
不能产生免疫应答
B.
不能防止寄生虫对环境的污染
C.
不能在有感染威胁的时候使用
D.
不能 产生保护性抗体
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Look! The light in the room is still on. Mr. Liu at work.
A.
must
B.
can’t be
C.
must be
D.
have to be
【单选题】Which statement is not true?
A.
The preliminary investigation into the massacre has been finished.
B.
Dozens of people were killed in that massacre.
C.
Saddam would be the only one who had to face death penalty if convicted.
D.
That massacre happened 50 miles north of Baghdad.
【单选题】Look! Liu Mei's name is on the bag. It_______hers. [ ]
A.
was
B.
has been
C.
must be
D.
will be
【简答题】We must do the experiment carefully__________Miss Liu told us. A．what B．since C．as D．while
【简答题】Most vegetables, to (enjoy) ______ in their full deliciousness, must be picked fresh and cooked at once.
【单选题】—— Excuse me. You must be Mr. Liu Hua from China? —— ___________________
A.
Yes, nice to meet you.
B.
How do you do?
C.
Thank you.
【单选题】Listen to that laughter! They______themselves.
A.
must enjoy
B.
must be enjoying
C.
may be enjoying
D.
can be enjoying
【单选题】All men are created _________and we must enjoy _________right and chances in everything.
A.
fair;same
B.
similarly;fair
C.
equal;equal
D.
fairly;equal
相关题目：
【单选题】Look! Liu Mei's name is on the bag. It_______hers. [ ]
A.
was
B.
has been
C.
must be
D.
will be