[单选题]作业平台不得超载回转中心不大于( )kg,后端不大于( )kg。
A.500 300
B.1000 700
C.800 400
D.700 300

Section Ⅱ Reading Comprehension Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SI-IEET 1. (40 points) Text 1 Extraordinary creative activity has been characterized as revolutionary, flying in the face of what is established and producing not what is acceptable but what will become accepted. According to this formulation, highly creative activity transcends the limits of an existing form and establishes a new principle of organization. However, the idea that extraordinary creativity transcends established limits is misleading when it is applied to the arts, even though it may be valid for the sciences. Differences between highly creative art and highly creative science arise in part from differences in their goals/’ For the sciences, a new theory is the goal and end result of the creative act. Innovative science produces new propositions in terms of which
A. Unlike Beethoven, however, even the greatest of modem composers, such as Stravinsky, did not transcend existing musical forms
B. In similar fashion, existing musical forms were even further exploited by the next generation of great European composers
C. Thus, many of the great composers displayed the same combination of talents exhibited by Monteverdi
D. By contrast, the view that creativity in the arts exploits but does not transcend limits is

Methods of studying vary; what works (21) for some students doesn’t work at all for others. The only thing you can do is experiment (22) you find a system that does work for you. But two things are sure: (23) else can do your studying for you, and unless you do find a system that works, you won’t go through college. Meantime, there are a few rules that (24) for everybody. The hint is "don’t get (25) ".
The problem of studying, (26) enough to start with, becomes almost (27) when you are trying to do (28) in one weekend. (29) the fastest readers have trouble (30) that. And ff you are behind in written work that must be (31) , the teacher who accepts it (32) late will probably not give you good credit. Perhaps he may not accept it (33) . Getting behind in one class because you are spending so much time on another is really no (3
A. anyway
B. either
C. at all
D. too