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【单选题】
新冠肺炎是一种新发传染病,人群普遍易感。目前认为能导致人群易感性降低的因素是:
【单选题】
人感染H7N9禽流感病毒的易感高危人群是
【单选题】
人群对布鲁氏菌普遍易感,对人侵袭力、致病力最强的是犬种菌。
【判断题】
所有家畜、家禽和人都对炭疽易感。(??)
【单选题】
We could ask someone to do the work privately without it __________.
【单选题】
You should [填空] smoking.
【单选题】
My aunt has three [填空].
【单选题】
You cant [填空] in the hall.
【判断题】
Who is teaching in your class?
【判断题】
A: Hello, Im David. Nice to meet you. B: Nice to meet you, too. Im Lee.
【判断题】
Jan works in a bank.? She like work very much.
【判断题】
A: How are you today? B: Im all right.
【判断题】
A: What do you do, Polly? B: I work for an IT company.
【判断题】
The old man is a teacher.He likes playing basketball after supper.