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【单选题】
下列选项中描述的是静态a的为A.
洁净室(区)在净化空气调节系统已安装完毕切功能完备的情况下,洁净室(区)内没有生产人员的状态
B.
洁净室(区)已处于正常状态,设备在指定的方式下进行,并且由指定的人员按照操作规范操作
C.
洁净室(区)在洁净空调系统已安装完毕且功能完备的情况下,但是没有生产设备、原材料或人员的状态
D.
洁净室(区)在生产操作全部结束,生产操作人员撤离现场并经过20分钟自净后
E.
洁净室(区)已处于正常状态,设备在指定的方式下进行
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【单选题】The DiaoYu Island have been part of China’s territory since ancient times, __________as important fishing grounds of Taiwan.
A.
served
B.
serving
C.
to serve
D.
having served
【单选题】---Lily, how long __________ the Football Club? ---Since two months ago.
A.
you have joined
B.
have you joined
C.
you have been in
D.
have you been in
【单选题】The Diaoyu islands have been part of China's territory since ancient times, ________ as important fishing grounds of Taiwan.
A.
served
B.
to serve
C.
serving
D.
having served
【简答题】对于函数 （1）是否存在实数a，使得函数f（x）是奇函数，若存在求出a值，不存在说明理由； （2）判断函数f（x）的单调性，并证明
【多选题】Listen to the video and tick Sandy's information.
A.
Sandy doesn't take her resume with her to the interview.
B.
She is applying for a kindergarten teacher position.
C.
She graduated from a nurse training school.
D.
She knows about children psychology and goverment standards for safety and health.
E.
She has been working as an assistant teacher in a middle school for the past year.
F.
She is patient enough with children.
【简答题】求 a 的值,使得函数 f ( x )= 在 x =1 处连续
【简答题】Listen to the video clip and finish the following sentences.
【简答题】Listen to the video clip and match the people with their titles.
【单选题】– How long _____ in this job? – Since 1990.
A.
were you employed
B.
have you been employed
C.
have you employed
D.
will you be employed
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