双盘浮顶罐上层顶板为中心坡向，下层顶板周边比中心略高。
参考答案：错
Despite high prices of the goods, the shopping mall is always attracting a lot of customers for
its ________ supplies.[ ]
A. diverse
B. discount
C. abundant
D. effective
新生儿败血症的特点是（）
A.高热
B.白细胞总数增多
C.有皮肤伤口
D.有胎内、产道感染
E.缺乏特异症状
