执行下列程序后，显示结果为( )。 *MAIN.PRG A=3 B=4 DO AA1 A,B PROCEDURE AA1 PRIVATE B A=5 B=A RETURN
A. 3 4
B. 5 4
C. 5 5
D. 5 3
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下列测试姓名字段值是否为空，正确的是( )。
A. 姓名=NULL
B. 姓名=!NULL
C. 姓名NULL
D. 姓名IS NULL
When the heavy snow started, it was ______ noon.
A. hardly
B. closely
C. nearly
D. mostly
The lost wallet is to be kept here until the loser comes to ______ it.
A. call for
B. call on
C. call out
D. call up
Where can you most probably have a chance of seeing fishes
At the Pyramid and the Future Tower.
B. At the Travel Pavilion and the Pyramid.
C. At the Nature Park and the Travel Pavilion.
D. At the Future Tower and the Nature Park.
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