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【简答题】
光纤传感器一般分为两大类，即传光型光纤传感器，也称为非功能性光纤传感器，另一类是 光纤传感器，也称为功能性光纤传感器。
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举一反三
【单选题】When students are doing a group-work task, the teacher joins one or two groups for a short period of time.
A.
controller
B.
prompter
C.
organizer
D.
participant
【简答题】完型填空。 If you are the best of the class. In the last few exams, one or two even several students 1 higher marks than you. 2 do you think about this? Are you jealous of them? Or are you 3 them? Please t...
【判断题】The first one or two years of secondary school are a general program undertaken by all students. In later years students take a core group of subjects and electives.
A.
正确
B.
错误
【单选题】It is important that all the young students _____ one or two foreign languages.
A.
could master
B.
have mastered
C.
mastered
D.
master
【简答题】园林的排水方式主要有 、 、 三种方式。
【单选题】When students are doing a group-work task, the teacher joins one or two groups for a short period of time.
A.
Controller
B.
Assessor
C.
Participant
D.
Resource-provider
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