流感的流行病学特征有()
A.甲型、丙型流感易引起流行
B.经空气飞沫传播
C.多发生在春季
D.患者及隐性感染病毒携带者是主要传染源
E.不同亚型之间有交叉免疫
参考答案:B, D
用FDI提出的二位数字法记录的牙位24指的是()
A.左下第一恒中切牙
B.右上第一恒前磨牙
C.左上第一恒前磨牙
D.左上第一乳磨牙
E.右上第一乳磨牙
An analyst does research about investment policy statement (IPS). Which of the following statements is least accurate An investment policy statement:()
A. provides discipline for the investmentmanagement process.
B. specifies the compensation and fee structure for the account management.
C. aids the portfolio manager in the construction and management of clients' account that satisfies the clients' needs.