某元素原子核外有四个电子层的是 ( ) A: 2He B: 10Ne C: 18Ar D: 19K
某元素原子核外有四个电子层的是 ( ) A: 2He B: 10Ne C: 18Ar D: 19K
某元素原子核外有四个电子层的是( )(0.7) A: 2He B: 10Ne C: 18Ar D: 19K
某元素原子核外有四个电子层的是( )(0.7) A: 2He B: 10Ne C: 18Ar D: 19K
磁共振成像中不能成像的包括( ) A: 1H B: 2He C: 12C D: 16O E: 31P
磁共振成像中不能成像的包括( ) A: 1H B: 2He C: 12C D: 16O E: 31P
Section C Conversation 2 18.____________________________ A: He is on sick leave. B: He is at a meeting. C: He is on business trip. D: He is on vacation.
Section C Conversation 2 18.____________________________ A: He is on sick leave. B: He is at a meeting. C: He is on business trip. D: He is on vacation.
智慧职教: He from among his friends as he is 2 meters tall.
智慧职教: He from among his friends as he is 2 meters tall.
It was ( ) 2 years after he arrived in London that he found a job in an international bank.
It was ( ) 2 years after he arrived in London that he found a job in an international bank.
2) He ' behaved ' like a gentleman.
2) He ' behaved ' like a gentleman.
Conversation 2 What happened to the man A: He fell ill. B: He lost his dog. C: He slept badly.
Conversation 2 What happened to the man A: He fell ill. B: He lost his dog. C: He slept badly.
（ 2） Confucius was good at ______ when he was fifteen.
（ 2） Confucius was good at ______ when he was fifteen.
2 He said a rough two-week period
2 He said a rough two-week period