皮皮学，免费搜题
登录
搜题
【单选题】
In a small pilot study, 12 women with endometrial cancer (cancer of the uterus) and 12 women with no apparent disease were contacted and asked whether they had ever used estrogen. Each woman with cancer was matched by age, race, weight, and parity to a woman without disease. What kind of study design is this?A.
Prospective cohort study
B.
Retrospective cohort study
C.
Case-control study
D.
Cross-sectional study
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The man proposed to the woman because ______.
A.
he realized he could find no other woman better
B.
he was afraid that the woman might leave him
C.
he was eager to visit Switzerland with the woman
D.
he could finally overcome his fear for marriage
【简答题】曲柄摇杆机构运动有两个重要的特性是: ; 。
【单选题】According to the Semantic proposed by Ogden and Richards, the ______ refers to the linguistic dements.
A.
form
B.
referent
C.
thought
D.
reference
【单选题】He proposed that we ______ a party for the success of the basketball match.
A.
held
B.
hold
C.
would hold
D.
to hold
【单选题】He proposed that we _______ a meeting , which suggested he ________ in our plan .
A.
held; was interested
B.
hold; was interested
C.
should hold ; be interested
D.
should hold ; interested
【单选题】He proposed to the aging billionaires more because of ________ than because of love.
A.
avarice
B.
aversion
C.
treachery
D.
hypocrisy
【单选题】The man proposed to the woman because ______.
A.
he was eager to visit Switzerland with the woman
B.
he was afraid that the woman might leave him
C.
he realized he could find no other woman better
D.
he could finally overcome his fear for marriage
相关题目：