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【单选题】
按照观察过程的结构性质与控制程度,可以将观察分为( )。A.
参与观察非参与观察
B.
正式观察与非正式观察
C.
直接观察与间接观察
D.
描述观察、取样观察与评定观察
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反馈参考答案：
举一反三
【简答题】进程的含义是什么?进程存在的标志是什么?
【简答题】向以上2张表中插入数据证明外键已经生效。
【单选题】—How much of the foreign expert’s speech have you understood? —Almost nothing. I wish I ________ harder at English.
A.
worked
B.
had worked
C.
would work
D.
were working
【单选题】—How much of the foreign expert’s speech have you understood? —Next to nothing. I wish I _______ harder at English.
A.
worked
B.
had worked
C.
would work
D.
were working
【单选题】The foreign expert put forward a plan at yesterday’s meeting, _____ all the people present spoke highly of.
A.
that
B.
what
C.
which
D.
when
【单选题】—How much of the foreign expert's speech have you understood? —Next to nothing.I wish I ________ harder at English. [ ]
A.
had worked
B.
worked
C.
would work
D.
were working
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