的名称是()。
A.1,3-二甲基戊烷
B.2-甲基-3-乙基丁烷
C.3,4-二甲基戊烷
D.2,3-二甲基戊烷
参考答案:D
Read and fill. 根据汉语意思写出英文。
Zip: One, two, three. . . 1 (十 一) lambs.
Zoom: How many horses are there?
Zip: 2 (十二).
Zoom: How many 3____ (绵羊) are there?
Zip: 4____ (十五).
Zoom: How many 5____ (奶牛) are there?
2ip:6 (十三).
Zoom: How many 7____ (山羊) are there?
Zip: 8 (二十一). How many 9 (熊) are there?
Zoom: None.
Zip: No! There is one! You!
临时设施四周接触严密,木板设施要()搭接,表面要用灰泥满抹或勾缝。
A.鱼鳞
B.整齐
C.齐边
D.隔开