挑战习题
1/5单选题
难度:

1.将一支温度计插入盛有酒精的瓶子中,拿出后观察,示数变化是()
A 不变
B 先上升后下降
C 下降
D 先下降后上升
提示1:
5bCG5rip5bqm6K6h5LuO6YWS57K+5Lit5ou/5Ye677yM5rip5bqm6K6h5pyJ6YWS57K+6ZmE552A77yM6YWS57K+6JK45Y+R5ZC45pS254Ot6YeP
正确答案:RA==
5bCG5rip5bqm6K6h5LuO6YWS57K+5Lit5ou/5Ye677yM5rip5bqm6K6h5pyJ6YWS57K+6ZmE552A77yM6YWS57K+6JK45Y+R5ZC45pS254Ot6YeP77yM5bim6LWw5LqG5ZGo5Zu054Ot6YeP5Y+v5Lul5L2/5rip5bqm6K6h6ZmN5L2O77yM6ZqP552A6JK45Y+R55qE6L+b6KGM77yM5rip5bqm6K6h5LiK55qE6YWS57K+6YCQ5riQ5raI5aSx77yM5rip5bqm6K6h56S65pWw5Y+I5Lya5Y2H5rip44CCPGJyPuaVheetlOahiOS4uu+8mkTvvI4=