通过阅读资料,回答下面的问题。 时间继电器是一种使用在较低的电压或较小电流的电路上,用来接通或
第3题
立后填写下列内容。学号()3A继电器的组合位置4A继电器的组合名称5A继电器IOF的组合侧面端子号6A继电器IOF的组合零层端子号7A继电器IOF的接口柜端子号8A继电器线圈1的组合侧面端子号9A继电器线圈1的接口柜端子号10A继电器线圈1的PIO板端子号11该信号机HH对应本组合侧面端子号12该信号机HH对应隔离组合侧面端子号13该信号机HH对应防雷保安器线路连接路径
第7题
a note of about 50—60 words based on the following situation: You missed yesterdays English class because you were ill. Write a note to your classmate Jim to ask him for some information about that class. Marks will be awarded for content, organization, language and appropriateness.
第8题
a note of about 50 — 60 words based on the following situation: You are preparing for TOEFL these days. You want to ask your friend, Sam, for some advice. Write him a note, expressing your request. Marks will be awarded for content, organization, language and appropriateness.
第10题
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