20毫米=______厘米4分米=______厘米2时=______分7千米=_

题型:填空题

问题:

20毫米=______厘米4分米=______厘米
2时=______分7千米=______米
______-24克=76克1分45秒=______秒.
考点:长度单位间的换算
题型:填空题

根据短文内容,判断正T误F。

      Potato chips are Americans' favourite snack (零食).Where do potato chips come from? In

1853, a native American named George Crum made the first potato chips. Crum was a chef in an

expensive restaurant in Saratoga Springs, New York.  One day,a customer did not like the French

fries. He said they were too thick. So Crum made more, this time, thinner. The customer still

didn't like them. Crum got unhappy. He decided to make the customer angry. So he cut the potatoes

very thin. The customer loved them.

     Other people wanted Crum's potato chips. Now, there was a new food on the menu-Saratoga

chips. Soon Crum opened his own restaurant and made his special chips.

It took a long time to make potato chips. People peeled the potatoes by hand. Then, in1920, the

automatic(自动的)potato peeler changed everything. Now it was faster and easier to

make potato chips. Now potato chips were not a specialty. They were a popular snack food, but

only in the north.

     A salesman named Herman Lay wanted to sell potato chips in the south. He sold potato chips

in bags.  His business grew.  Today, Americans eat a lot of potato chips every day.

( )1. At first the French fries were very thin.

(     )2. To make the customer angry, George Crum made the first potato chips.

(     )3. Before 1920, it was not easy to make the potato chips.

(     )4. George Crum invented a kind of machine which could peel potatoes.

(     )5.lt was George Crum who brought the potato chips to the south.

题型:填空题

出现锯齿型直方图的原因可能是( )。

A.与数据的分组有关,数据分组过多

B.过程中有趋势性变化的因素影响

C.数据中混杂了少量其他过程的数据

D.数据经过挑选,剔除了部分数据

题型:填空题

如图所示,上下不等宽的平行金属导轨的EF和GH两部分导轨间的距离为2L,I J和MN两部分导轨间的距离为L,导轨竖直放置,整个装置处于水平向里的匀强磁场中,金属杆ab和cd的质量均为m,都可在导轨上无摩擦地滑动,且与导轨接触良好,现对金属杆ab施加一个竖直向上的作用力F,使其匀速向上运动,此时cd处于静止状态,则F的大小为(   )

A.2mg

B.3mg

C.4mg

D.mg

题型:填空题

产品差异市场营销

题型:填空题

根据我国立法法,行政法规可以就下列哪些事项作出规定

A.为执行法律需要的事项

B.国务院行政管理职权的事项

C.关于人民法院组织的事项

D.关于人民检察院组织的事项

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