黄蜂蜇人后会死去。
参考答案：错
If we keep wasting so much energy, _____are that our oil wells will dry up and the environment will be destroyed.
A．problems
B．difficulties
C．questions
D．chances
代用票发生收入事故，每组按（）计算。
A.最高额
B.300元
C.500元
D.1000元
