中医中一钱等于几克

已知弦AB的长等于半径,点C是这圆AB上的一点,则角ACB是多少度 怎样让matlab 输出的结果不用分数表示,而是用小数表示,而且可以控制精确到小数点后几位的? Her mother is ill.She has been( )for two weeks.A.in the bed B.on the bed C.in bed D.on bed 15.— I hear Tom is working hard at his lessons.— but I’m ______ he still can’t pass the exams—I hear Tom is working hard at his lessons.— but I’m ______ he still can’t pass the exams this time.A.afraid B.surprised C.sure D.sorry Tom works very hard at his lessons.He did not get the first in the exam.A.however B yet C.though D although i helped Tom finsh his lessons对吗? He often does come ___(read) in the evening Today we'll climb a mountain which is 800 meters over sea level.(改错) 南孚电池的聚能环到底是什么东西? 南孚电池的聚能环怎么起作用? 关于南孚电池的聚能环?有谁知道传说中的南孚电池到底是什么机理呢?清说的详细些 Tom plays the violin very good.哪里错了? be over的中文翻译 x的不等式6x-ax5/(6-a),a值范围是 若关于x的不等式6x>b的解集为x0的解集为填空题, 5号南孚电池电容量是多少 如果不等式组2AX-6>A ;6X-5 已知方程组x+y=2-2k,x-3y=2,若方程组x-2y>0,求不等式2x+1≥x+2,x-k≤0的解集 用列举法表示方程组的解集的疑问 方程组2x+3y=13,3x-2y=0的解集可表示为___.｛（2,3）｝我觉得不严密,为什么X,y的次序不能颠倒?如果是约定俗成的话,那我自定的字母比如Q+I=3,U+Q=5,I+U=10又该怎么 The mountain is 4,000 metres_______ the sea level.A over B above Are you all students?yes --- A,we are all,B we all are 选哪个,谁能给出确定大难 三道解方程的过程 The mountain village is about 2000meters above sea level 对划线部分提问,划线部分是 3道解方程谢谢过程 这3道解方程, 什么是宇宙空间站? 已知集合A={x|x^2+6x+51)求A∩B (2)若全集U={x| |x|＜5}，求CU（A∪B）（3）若C={x|x＜a}，且B∩C=B，求a的取值范围。 设p=｛（x,y）||x|≤2,y∈R｝,Q=｛（x,y）||y|≤3,x∈R｝,若s=p∩q,则集合s中元素组成的图形面积为有选项的a6 b12 c24 d48 若a,b∈R,且a≠0,b≠0,则|a|/b+|b|/b的可能取值组成的集合种元素的个数是?麻烦速度啊!我在线等!要过程!关键是我要看懂啊! 若一差压变送器的量程为1.6MPa,输出信号为15mA,所测差压是多少 若2的x+1次方×3的x+1次方=36 求x 差压变送器为什么既可以当电源又可以当信号源用啊