We students should __________ ourselves __________ knowledge, for the competition nowadays is very fierce.
243. There are many kinds of media(大众传播). Which of the following do not belong to the same category?
242. Every day the teacher gives us a one-minute__________ in English.
241. --- To what window are you standing in a _______? --- No: 5, of course.
240. After our country’s entry into WTO, our agricultural products, such as ______ and so on are facing more and more challenge.
239. Since the plan for the project has been carefully worked out, what we have to do is to put it into _____.