《在职职工子女意外伤害保障计划》对子女的年龄限制是多少岁？
参考答案：《在职职工子女意外伤害保障计划》对子女的年龄限制是未满18岁。
此类污染最可能是
A．煤烟型烟雾
B．光化学型烟雾
C．酸雨
D．毒气泄漏
E．核污染
In many countries, some scientists are already _______ research in order to produce a cloned human baby.
A．putting up with
B．coming up with
C．putting forward
D．pushing ahead with
