取得执业医师资格，未经医师注册取得执业证书，不得从事医师执业活动。（）
参考答案：对
荧光法渗透中需配有能在紫外线下发出荧光的（）。
A、显象粉
B、颜料（或荧光物质）
C、涂料
D、以上都不是
Look at the sweat on her face. She________the house since she got up this morning.[ ]
A. is cleaning
B. has been cleaned
C. was cleaning
D. has been cleaning
