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【判断题】
突变体的筛选 , 初筛以量(选留菌株的数量)为主,复筛以质(测定数据的精确度)为主。 ( √ )A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What kind of people can best tolerate the risks of farming?
A.
People who want and value an outdoor lifestyle.
B.
People who enjoy taking risks with dangerous machines.
C.
People who want to supply others with safe drinking water.
【单选题】What kind of risks may pet owners take?
A.
Pets' feces will pollute the air of the house.
B.
Pets may bite other people, and their owners have to compensate.
C.
Pets can pass germs to human beings, and their bites can cause infection.
D.
Pet owners' lifespan may be shortened if their pets die of infection.
【单选题】The intention of the（）is to schedule, organize and control all activities to achieve the project goal eventually.no matter how difficult it is and what kind of risks are there.
A.
project work breakdown
B.
project security authentication
C.
project management
D.
project flowchart
【单选题】脑卒中软瘫期,为避免深静脉血栓、压疮等并发症的发生,应多长时间翻一次身?
A.
每1小时翻身一次
B.
每2小时翻身一次
C.
每3小时翻身一次
D.
每4小时翻身一次
E.
每5小时翻身一次
【多选题】What kind of risks may be increased if pregnant woman consumes too many calories?
A.
Gestational diabetes
B.
High blood pressure
C.
A bigger baby who is more to obesity
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