Since computers were introduced, they_____to be useful tools for people weak in math. A.had proved B.have proved C.will prove D.are proving相关知识点: 试题来源: 解析 B 句意:自电脑问世以后,它们已被证明是一种对数学薄弱的人们有用的工具。since引导的从句中的动词用一般过去时,主句用...
百度试题 题目Since computers were introduced,they to be useful tools for people weak in math.B() A.had provedB.have provedC.will proveD.are proving相关知识点: 试题来源: 解析 A 反馈 收藏
Since computers were introduced,they()to be useful tools for people weak in math. A.had proved B.have proved C.will prove D.are proving 正确答案: B 登录查看解析 进入题库练习 会员包含 全部题量 1210题 临考密卷 2套 模拟/真题 17套 试题答疑 不限次数 有效期 3-12个月 ￥25.00 立...
Since computers were introduced, they___to be useful tools for people weak in math.A.had provedB.have provedC.will proveD.are proving的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为
百度试题 结果1 题目【题目】Since computers were introduced, they to be useful tools for people weak in mat h. A.had proved B.have proved C.will prove D.are proving 相关知识点: 试题来源: 解析 【解析】B 反馈 收藏
百度试题 结果1 题目Since computers were introduced the< underline>yt< /underline>o be useful tools for people weak in math. A. had proved B. will prove C. have proved D. are proving 相关知识点: 试题来源: 解析 C 反馈 收藏
B 现在完成时,其他排除 自从引进了新技术后,该工厂的效率提高了 B
Patch tests were introduced as a diagnostic tool in the late nineteenth century. Since then, they have improved considerably becoming what they are today. Patch tests are used in the diagnostic investigation of contact dermatitis worldwide. Batteries or series previously studied and standardized should...
Simon Francis, coordinator of the group, said these important details were needed, especially if winter fuel payments are not restored to all pensioners. "We need to see the pension credit threshold raised significantly, a taper system introduced to stop people missing out on winter fuel payments...
英文tenseSince computers were first introduced to the public in the early 1980's,technology (change) has changed a great deal.The first computers (be) were simple machines designed for basic tasks.They (have,not) did not have much memory and they (be,not) very powerful.Early computers were...