【单选题】Wash your hands thoroughly in hot running water before you begin cooking. You should also wash your hands immediately after handling raw food or dirty dishes while you are in the kitchen. If you leave...
A.
Wash hands as often as you can
B.
Wear gloves when handling raw food
C.
Thoroughly wash the food you touch
D.
Wash hands thoroughly before cooking, after touching raw food or dirty dishes, and after using the bathroom
【单选题】如图5-17所示,下列的论述正确的是 。
【单选题】新型解热镇痛抗炎药扑炎痛的结构如图所示, 下列关于扑炎痛的叙述正确的是 [ ]
A.
该物质的分子式为C 17 H 16 NO 5
【单选题】发布性通知的标题要将所发布的规章名称用( )括起来。
【简答题】请写出应填入下列叙述中括号内的正确答案。 某一工程作业的网络图如图5—17所示,其中箭头表示作业,箭头边的数字表示完成作业所需的天数。箭头前后的圆圈表示事件,圆圈中的数字表示事件的编号。用事件编号的序号表示进行作业的路径。 (1)则完成此工程的关键路径是( )。 (2)完成此工程所需的最少天数为( )天。 (3)此工程中具有最大充裕天数的事件是( )事件。充裕天数为( )。 (4)关键路径上的事件...
【简答题】There is a book on the desk___________belongs to Frank.