下列合法的变量名是（）。 A: 22s B: s12 C: 2s2 D: 22

经典的Weslgurd多规则指的是（） A: 12S（警告）/13S B: 12S（警告）/13S/22S C: 12S（警告）/13S /22S /R4S D: 12S（警告）/13S /22S /R4S /41S /10x E: 12S /13S /22S /R/41S /10x

以下是原子在基态时的电子组态式，其中正确的是： A: $B:1s^22s^22p^2$ B: $Ar:1s^22s^22p^63s^23p^5$ C: $Cu:1s^22s^22p^63s^23p^63d^{10}4s^1$ D: $Br:1s^22s^22p^63s^23p^63d^{10}4s^24p^6$

对随机误差敏感的是( ) A: 7T B: 10X C: 22S D: 13S E: 41S

常用的质控规则不包括 A: 22S B: 12S C: 13S D: 41S E: 7X

当空气为22℃时，声音在空气中的传播速度为()。 A: 340m/s B: 344m/s C: 360m/s D: 380m/s

氧化亚铜常用于制船底防污漆。用CuO与Cu高温烧结可制取Cu2O，已知反应：2Cu(s)＋O2(g)===2CuO(s) ΔH＝－314 kJ·mol－12Cu2O(s)＋O2(g)===4CuO(s) ΔH＝－292 kJ·mol－1则CuO(s)＋Cu(s)===Cu2O(s)的ΔH等于( ) A: －11 kJ·mol－1 B: ＋11 kJ·mol－1 C: ＋22 kJ·mol－1 D: -22 kJ·mol－1

Questions 22 ～ 25 are based on the dialogue between Peggy and David about renting a house. Who is Mary A: Peggy’s sister. B: Peggy’s colleague. C: Peggy’s mother. D: Peggy’s roommate.

Questions 22 ～ 25 are based on the following dialogue concerning Ellen’s one trip. What do you know about Thai food from Ellen A: It’s sour. B: It’s sweet. C: It’s bitter. D: It’s hot.

2（22）. A: It sure does. B: Surely. Why not? C: They really look alike. D: It’s up to you.