皮皮学，免费搜题
登录
搜题
【单选题】
导游人员在向外国游客提供导游服务的同时,又肩负着()的重任A.
“管理者”
B.
“代言人”
C.
“民间大使”
D.
“领导者”
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】A technique that can be used to measure the total income of a project compared to the total moneys expended at any period of time is: A . return on investment (ROI) B . net present value (NPV) C . dis...
D.
. B and C
E.
. All of the above.
【单选题】霍乱的典型临床特征是（）。
A.
高热、腹泻、休克
B.
剧烈呕吐、腹泻、昏迷
C.
无痛腹泻、脱水、周围循环衰竭
D.
腹痛腹泻、里急后重、神志改变
E.
发热、腹疼、腹泻
【单选题】18 A technique that can be used to measure the total income of a project compared to the total moneys expended at any period of time is:
A.
return on investment (ROI)
B.
net present value (NPV)
C.
discounted cash flow (DCF)
D.
B and C
E.
All of the above
【单选题】The portion of the total income of China’s railways which comes from carrying cargo is____80 percent.
A.
consequently
B.
roughly
C.
comparatively
D.
incidentally
相关题目：