天然氨基酸都具有一个不对称α碳原子。 ( )
参考答案:错
-Who should be responsible for the accident?
-The boss,not the workers. They just carried out the order ______. [ ]
A. as told
B. as are told
C. as telling
D. as they told
在进行日常专卖检查的过程中必须要进行的步骤是()。
A、亮证
B、告知
C、整改
D、处罚