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【单选题】
关系数据库的数据操作分为两类A.
查询和更新
B.
修改和排序
C.
插入和删除
D.
查询和排序
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皮皮学刷刷变学霸
举一反三
【单选题】He found a lot of _______ were ______.
A.
passers-by; grown-ups
B.
passer-bys; growns-up
C.
passer-bys; grown-ups
D.
passers-by; growns-up
【单选题】He discovered that his hometown had changed a lot in the past five years.
A.
realized
B.
found
C.
dreamed
D.
heard
【单选题】He found a lot of _______were _______.
A.
passers-by; grown-ups
B.
passer-bys; grown-up
C.
passer-bys; grown-ups
D.
passers-by; growns-up
【单选题】He discovered that his hometown has changed a lot in the past five years.
A.
realized
B.
found
C.
recognized
D.
heard
【单选题】在Photoshop中下面有关修补工具的使用描述正确的是
A.
修补工具和修复画笔工具在修补图像的同时都可以保留原图像的纹理、亮度、层次等信息
B.
修补工具和修复画笔工具在使用时都要先按住Alt键来确定取样点
C.
在使用修补工具操作之前所确定的修补选区不能有羽化值
D.
修补工具只能在同一张图像上使用
【单选题】He has found a lot of reasons to explain his failure.
A.
effects
B.
results
C.
causes
D.
bases
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