S7-200系列PLC中,CPU224可以输出的高速脉冲的最高频率是() A.10k

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问题:

S7-200系列PLC中,CPU224可以输出的高速脉冲的最高频率是()

A.10kHz

B.20kHz

C.30kHz

D.40kHz

考点:江苏知识竞赛江苏省楼宇智能化知识竞赛江苏省楼宇智能化知识竞赛题库
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Xinjiang Yumin Mountain Flower Festival opened yesterday. It opens once a year. This is the fourth Flower Festival. It shows the great beauty of this area. The festival will last for 100 days. Visitors can visit the beautiful mountainous county(县) during the Flower Festival. They will enjoy a beautiful flower world.

Yumin is in the western part of Xinjiang. There are 24 rivers going through the area. The special geographical position(地理位置) and proper weather have made the county one of China's most interesting places. Visitors can enjoy the beautiful flowers, green grass, blue sky and so on.

The county is home to more than 1,000 kinds of plants. Different kinds of flowers come out in May every year. It's so beautiful. There are also more than 90 kinds of animals. In the past, it was known only by a small number of outdoor travel fans. But now it's very famous. So if you want to go on a trip to Yumin, you can start your trips in early May, when most of the county's wild flowers come out.

小题1:Does Xinjiang Yumin Mountain Flower Festival open once a year? (no more than 3 words)

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小题2:How long will the fourth Flower Festival last? (no more than 8 words)

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小题3:Why has Yumin become one of China's most interesting places?(no more than 14 words)

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小题4:When is the best time to visit Yumin? (no more than 5 words)

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潜水员潜入水下15m深处,他受到水的压强是______Pa.水面下某处产生的压强是3×105 Pa,则此处水的深度是______m.(g取10N/kg)

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体现对精神病患者人文关怀原则的是()。

A.对疑似精神病患者应进行详细的检查,防止误诊误治

B.详细向精神病患者家属解释有关的治疗方案

C.尊重精神病患者的人格,对其恢复期应进行心理辅导

D.为防止精神病患者出现过激行为,严格限制其自由是必要的

E.精神病患者的病情不宜公开

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发电机的电压过低会降低()。

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男,16岁,骑跨伤后4天,排尿困难, * * 口流血。查体:体温38.4℃,阴囊明显肿大,发绀。其处理方法是()

A.立即实施 * * 修补

B.立即以金属导尿管导尿

C.立即以橡皮导尿管导尿并留置

D.立即实施 * * 会师

E.耻骨上膀胱造瘘及引流外渗尿液

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