最小的三位数与最大的一位数相乘的积是900。[ ]

题型:判断题

问题:

最小的三位数与最大的一位数相乘的积是900。[ ]

考点:两位数(多位数)乘一位数
题型:判断题

我国河北省北部地区,在麦收时节,据统计,每公顷麦田约有750~1500只青蛙,一只青蛙一天可食20~200只害虫。因此,依靠这种天然的“除虫剂”,基本上可以控制害虫,保证小麦的收成。近年来,由于有些人大肆捕捉和食用青蛙,该地区青蛙几乎濒于绝灭。结果害虫大肆繁殖,造成小麦等农作物减产。

(1)后来使用农药,产量获得一些恢复,但随后继续大量减产,这是为什么呢?

(2)通过对以上资料的分析,你认为人类能否随意灭杀某种动物?为什么?

题型:判断题

I forgot _____ my textbook to school, so I had to borrow one from my friend.[ ]

A. bring

B. brought

C. bringing

D. to bring

题型:判断题

三条在同一平面(纸面)内的长直绝缘导线组成一等边三角形,在导线中通过的电流均为I,方向如图所示.a、b和c三点分别位于三角形的三个顶角的平分线上,且到相应顶点的距离相等.将a、b和c处的磁感应强度大小分别记为B1、B2和B3,下列说法正确的是(  )

A.B1=B2<B3

B.B1=B2=B3

C.a和b处磁场方向垂直于纸面向外,c处磁场方向垂直于纸面向里

D.a处磁场方向垂直于纸面向外,b和c处磁场方向垂直于纸面向里

题型:判断题

The average person learns most of the 30000~40000 words whose meanings he or she recognizes by hearing them or getting familiar with them in the context or simply absorbing them without conscious effort. The best way to build a good vocabulary, therefore, is to read a great deal and to participate in a lot of good talks. There are relatively few words that we learn permanently by purposefully referring to dictionaries or keeping word lists. However, even those extra few are of value, and no one will make a mistake by working on developing a larger vocabulary. Here are some suggestions of how to do it.

Read plenty of good books. When you come across a new word, or a new meaning of an old word, stop and see if you can understand it from its context. If you can’t, and if you can manage without interrupting the thought of the book too much, look it up in a dictionary or ask somebody and then repeat its meaning to yourself a couple of times. If you are really conscientious, write the word and its meaning in a personal vocabulary list—preferably using it in a sentence, or you can keep a special vocabulary notebook. Go over the list from time to time. Further, try to use a new word in writing or conversation a few times over the next several days.

Listen to good talks and be alert to new words you hear or to new meanings of words you already know. Then treat them just as you treat the new words you read.

Learn and be alert to the parts of words: prefixes, suffixes and roots. Knowing them enables you to make intelligent guesses about the meaning of words.

If you are studying a foreign language, be alert to words in that language which relate to words in English. English has inherited or borrowed much of its vocabulary of 500000~600000 words from Latin, Greek, French, Spanish and German.

According to this passage, the best way to build a good vocabulary is()

A. to remember a lot

B. to read a great deal

C. to take part in a lot of good talks

D. both B and C

题型:判断题

《十二铜表法》第6表第3条规定:“凡占有土地(包括房屋)二年,其他物品一年的,即因占有取得所有权。”该项法律规定()

A.适用于罗马境内一切自由民

B.调节财产所有人与占有人之间权利矛盾

C.缓和了贵族与平民之间的尖锐矛盾

D.导致私有财产得不到有效保护

更多题库