To value time, one should live each day as if it _____ the last day of life. [ ]
A. is B. will be C. were D. had been
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一辆汽车宽1.5米,当他通过半径为40米的半圆形弯道是,外轮比内轮多走多少米?
求下面每组数的最小公倍数.1.16 25 2.80 120 3.25 75
人体内是否由无数个细胞组成?每个细胞都含有同样细胞器?
Kate is good___maths.
用一块长60厘米,宽40厘米,高50厘米的钢坯,熔铸成棱长为5厘米的正方体钢材,一共能熔多少个这种钢材?
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His father isn't from England. (改为同义句) His father ____________ ____________ from England.
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Are you content with the result of the exam?
8个月前
人们都爱秋天,爱她的天高气爽,爱她的云淡日丽,爱她的香飘四野。
下列说法正确的是 [ ] A.植物在生活中不需要呼吸 B.动物在生活中能自己制造有机物 C.母鸡下蛋属于繁殖 D.植物对外界刺激不能作出任何反应
求由方程y=x+lny所确定的隐函数的导数dy/dx