扳手的选择原则一般()
A.优先套筒扳手,其次梅花扳手。
B.优先梅花扳手,其次套筒扳手。
C.优先活动扳手,其次梅花扳手。
D.优先开口口扳手,其次梅花扳手。
参考答案:A
设下图表示五个城市的航线图,每个结点表示一个城市,两个结点之间边的权值表示两个城市之间直达航线的票价(单位:元)。若某人打算旅游五个城市各一次,并且返回到他的出发点,则旅行的最低总票价为 () 元。
A.875
B.1045
C.1285
D.1525
用所给词的适当形式填空。
1. Town Cinema has (comfort) seats.
2. They have good (serve). We all like to go there.
3. I think Movie Palace is the (good) of all the cinemas.
4. This bag is very (heavy) but that one is even (heavy) .
5. Titanic was one of (popular) movies at that time.
6. Which is the best (cloth) store?