撒切尔夫人说:“你不能通过剥削强者来增强弱者……你不能不断通过包揽一切来帮助那些自己能够做到也应该做到的人。”与撒切尔夫人以上执政理念最相似的是( )
A:美国罗斯福新政
B:二战后的福利国家政策
C:苏俄新经济政策
D:新中国合理调整工商业
⑴____What are these?
⑵____Is there an apple on the table?
⑶____How many bikes are there ?
⑷____Can you drive a car?
⑸____What's the weather like in spring?
A: There're five.
B: It's warm.
C: They're pears.
D: Yes, there is.
E: No, I can't.
如图所示,光滑水平桌面上的布带上静止放着一质量为m=1.0kg的小铁块,它离布带右端的距离为L=0.5m,铁块与布带间动摩擦因数为μ=0.1.现用力从静止开始向左以a0=2m/s2的加速度将布带从铁块下抽出,假设铁块大小不计,铁块不滚动,g取10m/s2,求:
—He can make a model plane.