[单项选择]金樱子的原植物属于
A. 伞形科
B. 百合科
C. 豆科
D. 蔷薇科
E. 毛茛科

Many teachers believe that the responsibilities for learning lie with the student. (1) a long reading assignment is given, instructors expect students to be familiar with the (2) in the reading even if they do not discuss it in class or take an examination. The (3) student is considered to be (4) who is motivated to learn for the sake of (5) , not the one interested only in getting high grades. Sometimes homework is returned (6) brief written comments but without a grade. Even if a grade is not given, the student is (7) for learning the material assigned.
When research is (8) ,the professor expects the student to take it actively and to complete it with (9) guidance. It is the (10) responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain (11) a university library works; they expect students, (12) graduate students, to be able to exhau
A. but
B. except
C. with
D. besides

As mentioned above, C imposes relatively few built - in ways of doing things on the program- mer. Some common tasks, such as manipulating (66) ,  (67) , and doing (68)  (I/O), are performed by calling on library functions. Other tasks which you might want to do, such as creating or listing directories, or interacting with a mouse, or displaying windows or other  (69) elements, or doing color graphics, are not defined by the C language at all. You can do these things from a C program, of course, but you will be calling on services which are peculiar to your programming environment (70) , processor, and operating system) and which are not defined by the C standard. Since this course is about portable C programming, it will also be steering clear of facilities not provided in all C environments.