【简答题】独具慧眼。(对的打“√”,错的打“×”) 1.实际距离一定比图上距离大很多。 [ ] 2.在比例尺是10:1的图纸上,图上8厘米的线段表示实际距离是80厘米。 [ ] 3.两地的实际距离是1200千米,在比例尺是1:2000000的地图上的距离是6厘米。 [ ]
【单选题】把一个长为2毫米的零件画在图纸上,在图纸上量得这个零件长2分米,求这幅图纸的比例尺是( )
【单选题】The wrong description about the language features in English news is ( ).
A.
English news always use the most brief, stylish language.
B.
Rhetoric is seldom used in English news.
C.
There are some neologisms in English news, which come from hot sensational news.
D.
A variety of language styles are used in English news, to make it even more attractive.
【判断题】将一个2毫米的零件画在图纸上长10厘米,这幅图的比例尺是1∶50。 [ ]
【简答题】初二生物兴趣小组的同学对某小河中几种不同生物消化道内的食物进行分析,并请环保专家对这5种生物体内的主要污染物含量进行了测定。其结果见下表:生物种类消化道内食物千克体重汞相对含量 (1)根据表中信息推断5种生物之间的关系(以食物链或食物网的形式表示)。 (2)为什么鲇鱼体内汞含量最高? (3)如果大量含有氮、磷的污水流入该河中,会导致________,使小球藻和其他浮游植物大量繁殖,从而危害渔业生产...
【单选题】I ____ English novels and English news online.
【单选题】Whichway is not effective to learn English news reporting and writing?
A.
Learning from mistakes made in writing practice.
B.
Learning basic English news writing skills without writing practice.
C.
Acquiring cross-cultural communication competence and audience-oriented awareness.
D.
Reading English news reports extensively.
【单选题】在比例尺是1:10的图纸上,甲、乙两个圆的直径比是2:3,那么甲、乙两个圆实际的直径比是( )
【单选题】– What do you think is the best way to improve spoken English? – _____ listening to English news.
【判断题】在比例尺是 10 : 1 的图纸上, 2 cm 的线段表示实际距离 20 cm 。( )