燃气薄壁不锈钢管有焊接、丝接和环压连接等几种连接方式。
参考答案:错
With the development of agriculture, the people ________ village I taught are now living a happy life.
A.in whose
B.whose
C.in which
D.which
一家连锁酒店8个分店某月的营业额(单位:万元)为:60、60、70、80、80、70、70、65,那么这8个分店月营业额的众数为______。
A.60 B.65 C.70 D.80