题目内容

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

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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.

护栏按其结构划分不包括( )。

A. 柔性护栏
B. 梁柱式钢护栏、组合式护栏
C. 混凝土护栏
D. 波形梁护栏

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