投资品种的研究、投资组合的制定和决策以及交易指令的执行应当相互分离并由不同人员负责。( )
参考答案：对
—I haven't seen Zhang Tong for four days? Is she ill?
— __ . Her mother told me that she was in hospital. [ ]
A. I hope not
B. I'm afraid so
C. I don't expect
高血压性脑出血的最好发部位是（）。
A.延脑
B.中脑
C.桥脑
D.小脑
E.基底节区
