I love the rain, _________ you?[ ]
A. are
B. were
C. do
答案：C
如图所示，一木块放于斜面上，请画出木块所受重力G的示意图。
长江中下游地区夏季常见的自然灾害是
A．沙尘暴
B．洪涝
C．火山
D．海啸
