问题
选择题
“风调雨顺，五谷丰登“说明受降水影响最大的是（ ）
A．日常生活
B．交通出行
C．工业生产
D．农业生产
答案
洪涝灾害（降水）对农业的影响最大．
故选：D．
搜题请搜索小程序“爱下问搜题”
“风调雨顺，五谷丰登“说明受降水影响最大的是（ ）
A．日常生活
B．交通出行
C．工业生产
D．农业生产
洪涝灾害（降水）对农业的影响最大．
故选：D．
At the beginning of this century, medical scientists made an interesting discovery（发现）: we are built not just of flesh (肌肉) and blood but also of time. They were able to show that we all have a ‘body clock’ us, which controls the and fall of our body energies. It can us different from one day to the next. The idea of a ‘body clock’ should not be too because the lives of most living things are controlled by the 24-hour night-and-day cycle (循环). We feel and fall asleep at night. We become and energetic during the day. Most people will have a bad feeling if the 24-hour cycle is . For example, people who are not used to working at night can find that lack (缺少) of sleep causes them to badly at work. the daily cycle of sleeping and waking, we also have other cycle which lasts longer than one day. Most of us would that we feel good on some days and not so good on others; sometimes our ideas seem to be so active and at other times, they are not.
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