排除了sr的影响后问为什么生长速度还是不一样
if you have
it was ADJ ...
or
it has been/was/is said/believed...
then the "it" doesn't have to stand for anything. you should just memorize this as an idiomatic construction.
"it was a terrible mistake", though, would be incorrect unless "it" actually stood for some noun.
C错哪了?
C选项错在,several improvements in blowing machinery前面的介词是不能省略的。因为,With charcoal's being replaced by coal as the fuel used in the smelting of iron ore中的with是独立主格的with,不是一个普通的介词,而several improvements in blowing machinery是一个纯名词,身前需要一个真正的介词。
C可不可以认为charcoal‘s being replaced是一个动名词,这样的话这个结构没有表示动作的非谓语动词,无法构成独立主格
毕老师,请问这个with不可以统领charcoal's being replaced... 和 several improvements...两个部分么?
这样一个with引导了并列的2个成分,成为了主句的原因状语。
在形式上,也符合就近修饰。
有none 这个aaaaaaa 第三边 大于两边之差,小于两边之和
固定为p,每本书为a
1,只能算出a,但是不知道ppppp
(1) m - 3z > 0
(2) 4z - m > 0
1+2 z>0
1)+2) 4n=3124
n=781
代值
公因素是2,m=2a,p=2b,
m is not a factor of p m,p互为质数
and y is the number of even integers from 40 to 60
40到60中间有几个数!!!!!!!!
一定在圆外!!
因为 zy < xy < 0 又z < x
所以y不可能是负数,要不然z应该大于x
设学French的人一共有F,学Japanese的一共有J,两种语言都学的有B人,已知B=0.04F。
Statement1:B=16=0.04F,则F=400,但是J>=100,两者无法比较出大小。
Statement2: B=0.1J=0.04F,可得F/J=10/4=5/2,即F>J
4 percent of the students at the school who study French(在学法语的里面有4%学日语的) also study Japanese
16 students at the school study both French and Japanese.(都学的有16人)
n是奇数,另外就是偶数——(n-1)就是能被2整除,(n+1) 能被4整除(n-1)(n+1)起码是8的倍数
连续三个整数的乘积是3的倍数 因为n不能被3整除,那么(n-1)(n+1)一定是3的倍数,
任意两个数相乘 积为0 如果只有3个数的话 0,-1,0 也符合题意 但并不是每一个数都为0 不充分
这里强调任意!!就是每个数都是零(2)不存在 -1,1,-2,2 因为不是任意两个相加都等于0
intersect相交//tangent相切
500 is the multiple of 100 that is closest to x =500是(接近x的)一百的倍数-------450-550
400 is the multiple of 100 that is closest to y=400是(接近y的)一百的倍数------350-450
If n and p are integers 是整数,不可能有-1/2之类的
代值
(-a, b)
(-b, a) 同象限-->ab同正负。
The practicing physician must be familiar with the basic pharmacology of the various classes of hypoglycemic drugs 这句不是A项的意思吗,我觉得是关于FAT GENE的新作用是医生还未考虑的。