搜题请搜索小程序“爱下问搜题”
问题 解答题
化简
sin(2π-α)cos(π+α)cos(
π
2
+α)cos(
11
2
π-α)
cos(π-α)sin(3π-α)sin(-π-α)sin(
9
2
π+α)
．
答案

sin(2π-α)cos(π+α)cos(
π
2
+α)cos(
11
2
π-α)
cos(π-α)sin(3π-α)sin(-π-α)sin(
9
2
π+α)
=
-sinα•(-cosα)(-sinα)(-sinα)
-cosα•sinα•sinα•cosα
=-tanα．

填空题

The doctor-patient relationship is one of the (1) relationships in life, but many people say this relationship is beyond (2) . Can this relationship be saved The answer is (3) yes, because it must. And if that is lost, medicine becomes a technology and is (4) . In part the crisis in medicine began with doctors (5) themselves from patients.
The more critical work of a doctor happens in the taking of the human (6) . (7) is the most important and most difficult single transaction. The studies show that (8) of all the valuable information that leads to correct diagnosis comes from the history. Another (9) comes from the physical examination, 10% comes from simple (10) tests, and 5% comes from all the complex (11) . So listening is vital, because listening is not merely listening, but to establish a (12) .
But some doctors think listening is (13) . They like to use complex and costly (14) , and use (15) that create adverse reactions and require (16) . They don’t like to listen. Because there’s no premium on listening and that there’s no (17) for listening.
Even so, the doctor-patient relationship is not (18) saving. Because people may ask, what is good health And good health begins first and foremost with (19) . If you don’t care for a (20) , be somebody else, but don’t be a doctor!
查看答案
单项选择题

假如你是某公司的销售人员，在销售活动中，购买方代表向你索要回扣，你会采取哪一种做法______

A．向公司领导请示，按领导指示办
B．为了与对方建立长期的供货关系，可给对方一定数量的回扣
C．不给回扣，但可以考虑适当降低价格
D．考虑用小礼品替代回扣
查看答案