22. When her father fell into a serious disease, she would sit before the window with her eyes _____ at the street without thinking anything.
|
A. stare |
B. stared |
C. to stare |
D. staring |
第一节:单项填空(共15小题;每小题1分,满分15分)
请从A, B, C, D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项的标号涂黑。
21. _____ is acknowledged to us is that Qian Xuesheng _____ great contributions to our country's agriculture.
|
A. As; has done |
B. It; does do |
C. What; did do |
D. What; did did |
31.(18分)(1)
(2)
(3)
(4)
A植株
B植株
重庆一中高2010级高三上第四次月考物理参考解答
|
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
|
C |
D |
D |
A |
A |
C |
C |
D |
22(1)1 直流电产生的恒定电流场 (2分)
2 导电纸 (2分) 白纸(2分)
3 电流表不偏转(2分)
4 电表坏了;导电纸有导电物质的一面朝下;电源为未接上;电极与导电纸没有接触好(2分)
(2)用平滑曲线连接 (3分)
Q0约为 ( 8.0---9.0 )×10-3 C (3分)
C约为 ( 1.3----1.5)×10-3 F (3分)