皮皮学，免费搜题
登录
搜题
【多选题】
传染病发生和流行的三个基本环节有（）。A.
传染源
B.
传播途径
C.
易感人群
D.
交叉感染
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】阅读短文，选择正确答案。 Good morning, ladies and gentlemen. Here's morning news. Yesterday afternoon a ten-year-old school boy swallowed (吞下) a pen cap! The boy was daydreaming in class. Without knowing what he ...
【简答题】A:Good morning(afrernoon,evening),sir(madam,ladies and gentlemen)B:Good morning.(afternoon,enening)
【单选题】------ How’s your tour around the North Lake? Is it beautiful? ------ It _______ be, but it is now heavily polluted.
A.
will
B.
should
C.
would
D.
must
【简答题】Good morning, ladies and Gentlemen. Welcome to our train.
【单选题】---How’s your tour around the North Lake? Is it beautiful? ---It ________ be, but it is now heavily polluted.
A.
will
B.
would
C.
should
D.
must
【简答题】Good morning, ladies and gentlemen. I'm here today to share a good lesson with you. It is a true story about an overseas student 小题1: in Germany. After years of hard work, this student graduated with ...
【单选题】听力原文： Good morning, ladies and gentlemen. For this lecture, I am going to touch the. issue of slowdown of the world economy. The data has shown that in the past three months many economies in Asia enj...
A.
the rest of the world.
B.
Asia.
C.
the global business.
【单选题】Good morning .Ladies and gentlemen. I’m Kathy, I’m ___the first class.
A.
welcome
B.
guide to
C.
in charge of
D.
the same
相关题目：
参考解析：
知识点：
题目纠错 0
发布
