题目:
按下这个开关,后风窗玻璃除霜器开始工作。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:错解析: 已审核的记账凭证,制单人员不可以修改或删除,必须由审核人员取消审核后才可以修改或删除。
按下这个开关,后风窗玻璃除霜器开始工作。
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0411/1ce2abc1062f82e96ca9135d4fa40ebb.html
下面是错误答案,用来干扰机器的。
参考答案:错解析: 已审核的记账凭证,制单人员不可以修改或删除,必须由审核人员取消审核后才可以修改或删除。
关于运动的合成和分解,下列说法中正确的是( )
A.合运动的速度一定比每一个分运动的速度大
B.合运动的速度可能比每一个分运动的速度小
C.只要两个分运动是直线运动,那么它们的合运动也一定是直线运动
D.两个分运动的时间一定不与它们合运动的时间相等
阅读下面短文,从各题所给的A、B、C、D四个选项中选出最佳答案。
As summer comes near, many children are really happy to forget about school for a few months. However, they might be taking that goal too seriously. Studies have found that children often forget between one and three months’ worth of school learning during the summer months. Spelling and math abilities drop off the most, while reading is not really influenced by the time off. The main reason for this is because most children sometimes read outside of the classroom, whether newspapers, magazines, books, or video game guides. However, their math and spelling skills only get exercised in the school setting.
The first purpose of summer holidays was to let farm children have time off to help work in the fields during the growing season, but this reason is no longer a good one since fewer kids actually work on farms today. Some cities in the United States, such as Los Angeles, have moved to a year-round school timetable, which may help reduce the loss of school skills that happens during the long summer holiday. To improve skills and to keep a good level of preparation, headmasters suggest trips to museums, summer camps, holidays with educational value, and visits to libraries to keep kids interested throughout the summer.
There are other educational systems that provide holidays while still keeping students’ skills up to date. For example, in Japan, students attend class for seven weeks in a row, followed by two weeks of holiday. This continues the whole year. In Italy, students attend class six days per week, but finish at 1: 30 pm each day, so that school does not run their life the way that it does in America, where students attend high school from 7: 45 am until 3: 00 pm each weekday. In areas where there are not enough classrooms—in Afghanistan or Somalia, for example—older students attend classes in the morning while the younger kids go to school in the afternoon.
Headmasters fear that the three-month summer holiday stops the flow of learning. Just as students become used to new math problems or new ideas in reading, writing, or thinking skills, they “shut down” during the summer holiday. When they go back to school after the long summer holiday, they take up to two months to return to their previous (先前的) level of skill. So the debate continues: whether to continue holidays or to make changes based on the Los Angeles or the Japanese models.
小题1:Which skills suffer the most over the summer holidays?
A.Math and reading.
B.Math and spelling.
C.Reading and writing.
D.Reading and thinking.小题2:What can we learn about the first purpose of summer holidays?
A.It is still widely acceptable now.
B.It was popular in some cities.
C.It is not a good reason for city kids.
D.It was more for teachers than for students.小题3:The underlined phrase “shut down” in the last paragraph probably means __________.
A.stop learning
B.get sick
C.go on reading
D.focus on studies小题4:What can we infer from the passage?
A.Parents always read to their kids to keep reading skills.
B.Summer holidays lead to the loss of all the school skills.
C.Students love holidays and get their mind off learning in holidays.
D.In Italy students attend classes in the late afternoon six days a week.
下列哪项不是预防职业性汞中毒的措施()
A.以气动仪表代替汞仪表
B.改善作业环境条件,使空气中汞的浓度不超过0.01mg/m3
C.车间温度控制在18℃以下
D.戴防毒口罩
E.改善作业环境条件,使空气中汞的浓度不超过0.05mg/m3
有关非均一性血尿,错误的是()。
A.尿红细胞大小不等
B.尿红细胞多种形态异常
C.多为原发性肾小球疾病
D.溶血性疾病时多见
E.可伴尿蛋白增加
黑洞路由的网关为()。
A、0.0.0.0
B、127.0.0.0
C、127.0.0.1
D、127.0..0.2