[单项选择]American university student are usually under pressure of work because ______.

[单项选择]America university students are usually under pressure of work because _______.
A. their academic performance will affect their future careers
B. they are heavily involved in student affairs
C. they have to observe university discipline
D. they want to run for positions of authority

[单项选择]American university students are usually under pressure of work because ______.
A. their academic record will affect their future careers
B. they are heavily involved in student affairs
C. they have to observe university discipline
D. they want to run for positions of authority

[单项选择]Jason is usually under the weather, but his robust brother ______.
A. is rarely
B. is scarcely
C. hardly is
D. rarely is

[单项选择]Which American university is with the longest history
A. Yale
B. Oxford
C. Harvard
D. Stanford

[单项选择]Student A: I feel sick.Student B:______Student A: I'm not sure, but I have got a bad headache.

[单项选择] The STUDENT_GRADES table has these columns STUDENT_ID NUMBER(12) SEMESTER_END DATE GPA NUMBER(4,3) Which statement finds students who have a grade point average (GPA) greater than 3.0 for the calendar year 2001?（）
A. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' OR gpa > 3.;
B. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' AND gpa gt 3.0;
C. SELECT student_id, gpa FROM student_grades WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001' AND gpa > 3.0;
D. SELECT student_id, gpa FROM student_grades WHERE semester_end > '01-JAN-2001' OR semester_end < '31-DEC-2001' AND gpa >=s 3.0;

[单项选择] You are developing a user control for Windows Presentation Foundation (WPF) application. The user control contains a button. Both the user control and the hosting control must receive the button click event. You need to ensure that the user control responsd to the button click event before hosting control responds to the event. What should you do ?（）
A.  Use a bubbling routed event. In the button click event handler, set the Handled property to True
B.  Use a bubbling routed event. In the button click event handler, set the Handled property to False
C.  Use a standard Microsoft .NET event. Set Handled property to true.
D.  Use a tunneling routed event. Set the handled property to false.

[单项选择]The high living standards of the US cause its present population to ______ 25 percent of the world's oil.
A. assume
B. consume
C. resume
D. presume

[单项选择]What' s the main reason Einstein declined the presidency of Israel
A. Because science seemed more important to him than politics.
B. Because he was already an American citizen.
C. Because he rejected the biblical idea of God.
D. Because he could not forget his sad memory of living in German.

[单项选择]It is because English is being widely used at present ______.
A. why we learn it hard
B. that we learn it hard
C. which we must learn
D. when we should learn