猜你喜欢
- 1We should do our ------(good) to do more exercise.It’s good for our health.
- 2一火车沿直线轨道从静止出发由A地驶向B地,并停止在B地.A、B两地相距s.火车作加速运动时,其加速度最大为a1;作减速运动时,其加速度的绝对值最大为a2.由此可以判断出该火车由A到B
- 3解下列方程: (1)2{3[4(x-1)-8]-20}-7=1; (2)1/3(1−2x)=2/7(3x+1); (3)0.1x−0.20.02-2x+1/0.2=0.5.
- 4he likes l___ to music very much.
- 5二元一次方程怎么解?(x+y)*12.5=9750 ① (x-y)*13=9750②
- 6当m=______时,函数y=(m+3)x^(2m-1)+4x-5是一次函数.
- 7my brother will be here tomorrow.oh,i__that he would come today.
- 8第20课,第四题,按课文的记叙填空:晌午-过午-红日落山-红日西坠-黄昏-擦黑 进店饮酒()()()()()
- 9某同学为测定一瓶失去标签的稀硫酸的浓度,取100g该稀硫酸,逐滴加入20%的NaOH溶液至Ph=7,反应后总质140
- 10看到扇动着彩色翅膀的蝴蝶想到什么 是句子