Why the Preventive Service Task Force was involved in a controversial issue in 2009？
A. Because it said that early detection of breast cancer was not accurate enough.
Because it warned that middle-age women are of high risk of breast cancer.
C. Because it found that early detection of breast cancer may cause some harm.
D. Because it only looked at the special age group of 40s.
查看答案
In which way has the Preventive Service Task Force made some changes？
A. The way of getting their input.
B. The channel to release information.
C. The selection of members.
D. The range of their focus.
What is the main duty of the Preventive Service Task Force？
A. To make precautions against the spread of disease.
B. To help public learn about the indicators of disease.
C. To decide whether some medical checks are necessary.
D. To judge if the doctors are qualified for what they do.
友谊需要滋养。有的人用钱，有的人用汗，还有的人用血。友谊是很贪婪的，绝不会满足于餐风饮露。友谊是最简朴同时也是最奢侈的营养，需要用时间去灌溉。友谊必须述说，友谊必须倾听，友谊必须交谈的时刻双目凝视，友谊必须倾听的时分全神贯注。友谊有的时候是那样脆弱，一句不经意的言辞，就会使大厦顷刻倒塌。友谊有的时候是那样容易变质，一个未经证实的传言，就会让整盆牛奶变酸。这个世界日新月异。在什么都是越现代越好的年代里，唯有友谊，人们保持着古老的准则。朋友就像文物，越老越珍贵。
The authors attitude toward Dr. Schweitzer and Dr. Goodwins speculation on the possibility
A. skeptical.
B. supportive.
C. indifferent.
D. optimistic.
微信支付 
支付宝支付