皮皮学，免费搜题
登录
搜题
【单选题】
Two United Nations agencies warned on Tuesday that children are most at risk of developing skin cancers as a result of the long-term decline in the earth's protective ozone layer. The agencies, the World Health Organization(WHO)and the UN Environmental Programme(UNEP), issued the warning as they launched a global programme aimed at alerting schools to the dangers of exposure to the sun. Why does the risk of developing skin cancers in children become greater and greater?A.
Because they pay little attention to their skin health.
B.
Because they are short of physical training.
C.
Because the earth's protective ozone layer declines year after year.
D.
Because the earth is getting warmer and warmer.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—It’s one o’clock now. I must go. —It’s raining outside. Don’t leave it stops.
A.
when
B.
since
C.
until
【简答题】In past-oriented societies, people usually attach great importance to history and ______.
【单选题】据不完全统计,宁波一带的民间戏曲和民间歌舞有近百种之多。主要有象山菩萨戏、象山鱼灯舞、爵溪渔鼓、镇海澥浦船鼓、奉化布龙舞等。其中较为典型的当属 。
A.
象山东门岛的菩萨戏
B.
象山鱼灯舞
C.
爵溪渔鼓
D.
奉化布龙舞
【单选题】—It’s too late. I have to go now. —Oh, it’s raining outside. Don’t leave it stops.
A.
while
B.
if
C.
until
D.
after
【简答题】In past-oriented societies, people usually attach great importance to ______and ______.
相关题目：