升机使用或安装架设时（）。A、一般情况下不准载人上下，当遇到有特殊情况时可以 B、安装

In securing the shares for all accounts under her management, Linda Kammel of Northwest Futures purchased three blocks of shares at three different prices. She then allocated these shares by placing shares from the first block in accounts with surnames beginning with A-G. The second was allocated over accounts H-P, and the third over Q-Z. This action is:（）

A. not permissible under the Code and Standards.

B. consistent with her responsibilities under the Code and Standards.

C. permissible so long as the commissions per share are the same across all accounts.

在制作烤瓷牙时，预成型体制作时应

A．加压并适当放大尺寸
B．加压并适当缩小尺寸
C．加压并保持原尺寸
D．常压并保持原尺寸
E．常压并缩小尺寸

感知电流

离心泵改变排出阀开度，使管路（）改变，管路特性曲线的斜率就会改变。

A.阻力系数

B.雷诺准数

C.流量系数

D.欧拉准数

下列方剂中均含有桂枝与甘草，但应除外（）

A.桂枝汤

B.九味羌活汤

C.麻黄汤

D.小青龙汤

E.小建中汤