心室颤动的症状体征不包括（）.
A.心音强弱不等
B.意识丧失
C.脉搏触不到
D.血压测不到
E.大汗淋漓
参考答案：A, E
Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her
first _____. [ ]
A. intention
B. attempt
C. purpose
D. desire
通信线路的带宽是描述通信线路的______。
A．纠错能力
B．物理尺寸
C．互联能力
D．传输能力
