Five years ago Edward decided to leave the North and____a less oppressive life in HouMon.
A. search
B. explore
C. survey
D. seek
查看答案
The piston cooling system may employ similar components, except that _____ is used instead
A. a sump tank
B. a feed well
C. a double bottom tank
D. a drain tank
在相同条件下,a L氢气和b L氨气所含原子数相同,则a与b之比为()。
A. 1:1
B. 2:1
C. 1:2
D. 1:3
先天性不育中牛白犊病是指()
A. 谬勒氏管发育不全
B. 子宫颈发育异常
C. 卵巢发育不全
D. 异性孪生母犊不育
E. 染色体异常
海晟烟叶收购POS机可选择的内置不闻断电源接口,可提供()个小时的收购工作。
A. 0.3
B. 0.6
C. 9
D. 0.12