If the expansion work w = -15 J, it indicates that the work is done on the surroundings.
If the expansion work w = -15 J, it indicates that the work is done on the surroundings.
If the expansion work w = -15 J, it indicates that the volume change is negative.
If the expansion work w = -15 J, it indicates that the volume change is negative.
我(Wǒ)八点半(bādiǎnbàn)起床(qǐchuáng)。我(Wǒ)几点(jǐdiǎn)起床(qǐchuáng)? A: 7:30 B: 8:15 C: 8:30 D: 8:08
我(Wǒ)八点半(bādiǎnbàn)起床(qǐchuáng)。我(Wǒ)几点(jǐdiǎn)起床(qǐchuáng)? A: 7:30 B: 8:15 C: 8:30 D: 8:08
W/O型乳化剂的HLB值()。 A: B: 15~18 C: D: 13~16 E: F: 8~16 G: H: 7~9 I: J: 3~8
W/O型乳化剂的HLB值()。 A: B: 15~18 C: D: 13~16 E: F: 8~16 G: H: 7~9 I: J: 3~8
O/W型乳化剂的HLB值为()。 A: B: 15~18 C: D: 13~16 E: F: 8~16 G: H: 3~8 I: J: 7~9
O/W型乳化剂的HLB值为()。 A: B: 15~18 C: D: 13~16 E: F: 8~16 G: H: 3~8 I: J: 7~9
W/O型乳化剂的HLB值为()。 A: B: 15~18 C: D: 13~16 E: F: 3~8 G: H: 7~9 I: J: 8~16
W/O型乳化剂的HLB值为()。 A: B: 15~18 C: D: 13~16 E: F: 3~8 G: H: 7~9 I: J: 8~16
W: Are you leaving7 It’s 7:30.M: No, I’m going to wait another 15 minutes. When will the man leave() A: At 7:45. B: At 8:00. C: At 7:30. D: At 7:15.
W: Are you leaving7 It’s 7:30.M: No, I’m going to wait another 15 minutes. When will the man leave() A: At 7:45. B: At 8:00. C: At 7:30. D: At 7:15.
【单选题】有一功率为 60 W 的电灯,每天使用它照明的时间为 4 小时,如果平均每月按 30 天计算,那么每月消耗的电能为多少度?合为多少 J ? A. 3 度, 3 ´ 10 7 J B. 7.2 度, 2.6 ´ 10 7 J C. 5 度, 5 ´ 10 7 J D. 10 度, 9 ´ 10 7 J
【单选题】有一功率为 60 W 的电灯,每天使用它照明的时间为 4 小时,如果平均每月按 30 天计算,那么每月消耗的电能为多少度?合为多少 J ? A. 3 度, 3 ´ 10 7 J B. 7.2 度, 2.6 ´ 10 7 J C. 5 度, 5 ´ 10 7 J D. 10 度, 9 ´ 10 7 J
在括号中填上适当的/r/、/w/、/j/音。Who()else saw it and what did they say()about it? A: /w/、/j/ B: /r/、/w/ C: /r/、/r/ D: /j/、/w/
在括号中填上适当的/r/、/w/、/j/音。Who()else saw it and what did they say()about it? A: /w/、/j/ B: /r/、/w/ C: /r/、/r/ D: /j/、/w/
[听力原文]W: What time did yesterday’s basketball game startM: It was supposed to start at a quarter to 7, but it was delayed an hour. When did the game finally start() A: 7:15 B: 7:45 C: 6:15 D: 6:45
[听力原文]W: What time did yesterday’s basketball game startM: It was supposed to start at a quarter to 7, but it was delayed an hour. When did the game finally start() A: 7:15 B: 7:45 C: 6:15 D: 6:45