选择题:This year we’ll produce ( ) steel as we did last 题目分类:西北大学-大学英语 题目类型:选择题 查看权限:VIP 题目内容: This year we’ll produce ( ) steel as we did last year. A. three times as much B. as three times much C. as much three times D. three times much as 参考答案:
He (道歉) to his roommate for being so rude yesterd He (道歉) to his roommate for being so rude yesterday. 分类:西北大学-大学英语 题型:选择题 查看答案
关于神经纤维传导兴奋的叙述,下列哪一项是错误的? 关于神经纤维传导兴奋的叙述,下列哪一项是错误的? A.生理完整性B.单向传导C.相对不疲劳性D.绝缘性 分类:西北大学-大学英语 题型:选择题 查看答案
设X1,X2,……,Xn独立同分布, _D(x)=δ^2,X=1/n∑(i=1→n)Xi, 设X1,X2,……,Xn独立同分布, _D(x)=δ^2,X=1/n∑(i=1→n)Xi,S^2=1/(n-1)∑(i=1→n) _(Xi-X)^2 分类:西北大学-大学英语 题型:选择题 查看答案
(多选题) 钢材在常温下进行加工,使其产生塑性变形,则钢材的( )。(本题3.0分)A、 抗拉强度明 (多选题) 钢材在常温下进行加工,使其产生塑性变形,则钢材的( )。(本题3.0分)A、 抗拉强度明显提高B、 屈服点明显提高C、 塑性韧性明显降低D、 吸收能 分类:西北大学-大学英语 题型:选择题 查看答案