皮皮学，免费搜题
登录
搜题
【单选题】
Suppose the demand for rescue services in our national parks is perfectly inelastic. This fact would mean that a 31 percent increase in rescue fees leads toA.
a 31 percent decrease in the quantity demanded.
B.
a 31 percent increase in demand.
C.
a 31 percent decrease in demand.
D.
no change in the quantity demanded.
E.
a decrease in the quantity demanded to 0 rescues
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】Global Health officials have been closely monitoring a new virus related to SARS that is believed ______ at least one person in Saudi Arabia．
A.
to kill
B.
to be killing
C.
to have killed
D.
kill
【单选题】According to Federal health officials, the fact that more West Nile cases have been reported indicates that
A.
more states are affected.
B.
the average age dropped drastically.
C.
health officials are more alert to the disease.
D.
the epidemic season began a month earlier.
【简答题】写出下列音程结构相同与结构不相同的等音程,并标明名称。
【单选题】下列表述不符合文义的是( )。
A.
用酶工程技术能生产蔗糖的替代品。
B.
人胰岛素和猪胰岛素有着相同的结构。
C.
酶工程给糖尿病的人带来了福音。
D.
猪的胰岛素能与人的胰岛素耳换。
【简答题】Health officials in western Siberia are to begin in slaughter of thousands of birds today after identifying Russia's first outbreak of a bird flu strain that can be fatal in humans. Doctors in neighbo...
相关题目：