月球的土壤中吸附着数百万吨的氦(He-3)，其原子核中质子数为2、中子数为1，下列关于氦(He-3)元素的说法正确的是（    ） A: 原子核外电子数为3 B: 相对原子质量为2 C: 原子的核电荷数为3 D: 原子结构示意图为：

电子、质子、中子、He-3、氘核都是费米子，服从费米-爱因斯坦统计。

电子、质子、中子、He-3、氘核都是费米子，服从费米-爱因斯坦统计。 A: 正确 B: 错误

Questions 3: Susan and (he, him) are siblings. A: he B: him

He lived in London for 3 months , during ____ time he learned some English.

Question 8: When was Kher separated from his parents A: When he was 13 B: When he was 16 C: When he was 3 D: When he was 7

News Report 2Questions 3 and 4 are based on the news report you have just heard.Question 3 A: He works at a national park. B: He is a queen bee specialist. C: He removed the beyond from the boot. D: He drove the bees away from his car.

1 Socrates was _______________________. He is a patron saint of philosophy. 2 He was born in ________ in _______. 3 As a young man, he had been a brave soldier ____________________________. 4 In middle age, he ___________________________________. 5 In 399 BC, _______________________________________________.

He called at 2)____________, but her parents did not 3)________________.

He bought a house __________ (build) 3 years ago.