治疗温病,伤寒后余热未清的方剂是()
A.清暑益气汤
B.香薷散
C.六一散
D.碧玉散
E.竹叶石膏汤
参考答案:E
The king is said to _______ by the spider weaving its web in the cave where he was hiding and defeated his enemy at last.
A.be encouraged
B.being encouraged
C.have been encouraged
D.have encouraged
增量式光电编码器的两套检测装置所得到的两组脉冲信号在相位上相差()。
A、0°
B、45°
C、60°
D、90°