Exactly when the first people arrived in ________ we now know as California, no one really knows.

A．which

B．what

C．that

D．it

下列何项不是理中丸的主治证

A．气虚脾不统血证

B．病后喜唾证

C．霍乱吐泻证

D．胸痹证

E．小儿慢惊