题型：解答题 完形填空。 Sam and Pat are brothers. They are in 1 class. Sam words 2 and studies better than his brother, Pat. One day, the teacher asked the class 3 a composition (作文). The name of it 4 "My Mother".Sam wrote a composition and 5 to hand it in (交) to the teacher when Pat said, "Wait a minute, Sam, let me 6 a look." Pat read it and 7 it. The next day, the teacher 8 Pat, "Why is your composition the same as 9 ?" " 10 we have the same mother," answered Pat.( )1. A. same as( )2. A. harder( )3. A. writing( )4. A. was ( )5. A. is ready( )6. A. to have ( )7. A. copies ( )8. A. asks ( )9. A. Sam's( )10. A. Since B. different B. hard B. wrote B. will beB. is readingB. has B. copied B. to asked B. Sams' B. For C. the same C. well C. to write C. were C. was ready C. had C. copysC. askedC. Sam of C. AsD. same D. better D. writes D. is D. was read D. have D. will copy D. asking D. of Sam D. Because 查看答案
题型：解答题 在0.1mol•L-1 CH3COOH溶液中存在如下电离平衡：CH3COOH⇌CH3COO-+H+对于该平衡，下列叙述正确的是（ ）A．加入水时，平衡向逆反应方向移动B．加入少量NaOH固体，平衡向正反应方向移动C．加入少量0.1mol•L-1 HCl溶液，平衡向正反应方向移动D．加入少量CH3COONa固体，平衡向正反应方向移动 查看答案