《中华人民共和国执业医师法》规定取得执业医师资格，未经医师（）取得（），不得从事医师执业活动。
查看答案
An oil tanker，except as provided for otherwise，might discharge certain amount at certain rate of oil or oily mixtures into sea when（）.
A. she is not within a special area
B. she is within a special area
C. she has just departured from a special area
D. she is about to enter a special area
管道运输特点不包括（）
A. 运输量大
B. 运输方式不灵活
C. 适用性差
D. 速度较快
微信支付 
支付宝支付