皮皮学，免费搜题
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搜题
【单选题】
IgG的补体结合点在A.
CH3
B.
铰链区
C.
CL
D.
CH2
E.
CH4
拍照语音搜题，微信中搜索"皮皮学"使用
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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】Questions 21-23 are based on the passage you have just heard.
A.
He was not happy with the new director.
B.
He was not qualified to be an engineer.
C.
He wanted to travel.
D.
He found his job boring.
【单选题】飞机上,一位老人无法自主排尿,膀胱可能胀破。机上乘客张红医生和肖占祥医生自制装置,用嘴吸尿 37 分钟救人。他们 的事迹启示我们 1 生命的 价值在于能挽救他人生命 2 生命是 珍贵 的 , 生命意义是具体的 3 生命的意义需要自己 奉献 和创造 4拒绝冷漠,设身处地地善待他人
A.
A . ①②③
B.
①②④
C.
C . ①③④
D.
②③④
【单选题】Questions 21-23 are based on the passage you have just heard.
A.
He enjoyed teaching English.
B.
He wanted to earn more to support his family.
C.
The owner of the school promised him a good position.
D.
He could earn more as a teacher than as a travel agent.
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