生活现象 | 产生原因 |
a.将糖放入盛水的杯中,一会儿都变甜 | e.气体被压缩内能增加 |
b.汽车急刹车时,乘客身体向前倾 | f.流体流速越大处压强越小 |
c.乘客在火车站台候车,须站在安全线外 | g.分子不停地做无规则运动 |
d.用打气筒打气时,气筒内气体温度升高 | h.物体具有惯性 |
A.a﹣﹣g |
B.b﹣﹣f |
C.c﹣﹣h |
D.d﹣﹣e |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2