皮皮学，免费搜题
登录
搜题
【单选题】
如果互联的局域网分别采用TCP/IP与SPX/IPX协议,则可以选择 作为网络互联设备。A.
中继器
B.
网桥
C.
交换机
D.
多协议路由器
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】Despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. Two possible explanations for this increase have been offered....
A.
Urban populations have doubled in the past decade.
B.
Records of asthma deaths are as accurate for the past twenty years as for the past ten years.
C.
Evidence suggests that bronchial inhalers make the lungs more sensitive to irritation by airborne pollen.
D.
By tem|X)rarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures.
E.
Ten years ago bronchial inhalers were not available as an asthma treatment.
【单选题】DHPLC 检测要求样品片段大小范围是
A.
<200bp< /div>
B.
>500bp
C.
200-500bp
D.
300-600bp
E.
100-300bp
【简答题】A new study suggests dring soda might _ the risk for respiratory disease like asthma and chronic obstructive pulmonary disease (COPD).
【单选题】Asthma ( 哮喘 ) is thought to be a disease partly linked ________ air pollution.
A.
in
B.
to
C.
on
D.
for
相关题目：