组砼三个强度值中的最大值或最小值有一个与中间值相差()时,取中间值作为抗压强度值
A、等于15%
B、大于15%
C、小于15%
D、大于10%
参考答案:B
Last year our factory produced 50,000 TV sets, most of ____ were shipped to European countries.[ ]
A. whom
B. which
C. what
D. that
()部位的皮肤擦伤不宜外涂紫药水。
A、前臂
B、肘关节
C、髋部
D、小腿