幫朋友上傳 寂靜分享

nymis

第一次發文竟然是幫朋友上傳

因為他網路一直不通

他說詳細圖文都在附件了，有五題Q一題CR

1. 三個圓半徑分別為4. 5. 6，直線分割為半圓，求綠色的上半圓部分和咖啡色的下半圓部分總共是多大? (附件有圖)

2.  斜邊斜率為24/7，已知高為14, 求斜邊長度為? (附件有圖)

3. 數列An符合規則：An= A1+ d(n-1)，已知A1為54, A17為30，求A25


4. 25*10^n+K*10^2n為9的倍數，求K可能的值為多少 (選項為23, 48等..)
5. 最小的五個正整數的標準差為多少

CR GWD原題
21. GWD21-Q21:

Which of the following most logically completes the passage?
Mastitis is an infection of the udder in cows that, although not dangerous, causes them to give poor-quality milk.  Most cases of mastitis are caused by the bacterium Staphylococcus aureus, against which antibiotics are ineffective.  However, a related bacterium, Staphylococcus simulans, quickly clears up even severe infections of S. aureus simply by displacing the bacteria.  S. simulans is nevertheless unlikely to become the preferred treatment for cases of mastitis, since ______.

• certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulan
  
  

the current resistance of S. aureus to antibiotics derives in part from a past pattern of overuse of those antibiotics

the milk from cows infected with S. aureus is generally not of such poor quality as to be entirely unusable

careful farming practice can reduce the incidence of mastitis to a minimum

the only symptom of mild cases of mastitis is the deterioration in the quality of the milk produced

genius_fang

谢谢LZ！

yuling526

逻辑体选b??

Tima2009

同意楼上的

genius_fang

这倒逻辑选A吧~certain dangerous bacteria that normally cannot take hold can do so in the presence of S. simulan

AllenZX

楼主朋友精神可嘉..
逻辑选A