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【单选题】
可编程序控制器梯形图中的触点有、,它们可以是PLC内()的触点。
A.
输入继电器
B.
累加器
C.
控制器
D.
程序存储器
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举一反三
【单选题】404· 重载船顶急流靠泊时,靠拢角度宜( )以减轻轧拢岸力。
A.
B.
C.
A、B都对
D.
A、B都错
【简答题】Complete the sentences with the following words or phrases. Change the form if necessary. 1. After Tom passed his driving test, he ________ an application for his driver’s license. 2. Mary and I have...
【简答题】用所给单词的适当形式填空。 1. Must we _____( start) the work at once? 2. —Where _____ (be) our English teacher? —She _____ (talk) with some students over there. 3. Mary got a lot of presents on her _____ (twelve)b...
【判断题】农产品批发市场不得设立检测机构,只能委托农产品质量安全检测机构对进场销售的农产品质量安全状况进行抽查检测。
A.
正确
B.
错误
【简答题】Task 2 Complete the sentences with the following words or phrases. Change the form if necessary. 1. After Tom passed his driving test, he ________ an application for his driver’s license. 2. Mary and...
【单选题】Once we have read the material, we want to discuss it or hear it ____ on, not repeated.
A.
doubtful
B.
domestic
C.
extensive
D.
elaborated
【简答题】Read the email below and fill in the blanks with proper prepositions. Referring (1) ____ Contract No. 115, we are sorry to say that the relevant L/C has not arrived yet up (2) ____ the time of writing...
【简答题】comment think twice implement go off fill out 1. After Tom passed his driving test, he ________ an application for his driver’s license. 2. Mary and I have __________ cooking, so we live...
【简答题】选词填空,并做适当的变形 comment think twice implement go off fill out 1. After Tom passed his driving test, he_________ an application for his driver's license. 2. Mary and I have_...
【简答题】Summary Read the text (P34) carefully and fill in the blanks. If we are 1.________ ourselves, most of us have 2. ________ being famous sometimes in our lives. Most musicians often meet and 3. __...
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