某种灯具,可以使用6个最大功率为40W的白炽灯泡,在标记额定功率时,下面哪种表达是正

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问题:

某种灯具,可以使用6个最大功率为40W的白炽灯泡,在标记额定功率时,下面哪种表达是正确的()

A.240W

B.60W

C.6×40W

D.6×MAX 40W

考点:灯具制造工程师灯具制造工程师题库
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在地球的圆轨道上运动的质量为m的人造卫星,它到地球表面的距离等于地球半径R,设在地球表面的重力加速度为g,求:

(1)卫星运动的周期为多少?

(2)卫星运动的加速度是多少?

(3)卫星的动能为多少?

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关于布氏杆菌病的发病机制,叙述错误的是()

A.细菌和毒素以及变态反应均不同程度地在发病中起作用

B.不易复发

C.慢性期以变态反应引起的病变为主

D.病原菌可以多次进入血流引起临床症状反复加重

E.急性期以细菌及毒素起作用为主

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Turkey’s Bodrum peninsula is different. The tourist boom in this part of the world (1) turned some small villages into resorts yet left neighbouring beaches undisturbed, making it quite (2) southern France or the Spanish Coasts where few stretches of coastline are undevelopeD.
The (3) for this happy set of circumstances is simple. For thousands of years, travel here (4) easier by boat than by lanD.So when mass tourism arrived in the (5) 1980s, there was no coast road for ribbon development to follow. So the peninsula, just (6) hour from Bodrum airport, has not become one long littoral of resort.
The building (7) new hotels has mainly been confined to places easily reached by then relatively (8) roads. Such ease of access has made Gumbet, near Bodrum, a busy resort, while the little fishing village of Gumusluk, 12 miles further west and only recently reachable by (9) , remains tranquil and undisturbeD.
It’s worth thinking carefully about location when planning a family (10) on the peninsulA.Choose a place that is centrally located, preferably out of earshot (11) Bodrum town’s "lively"—which means nosy—nightlife, and you can then use (12) area’s comfortably small scale to your advantage. Today’s new roads mean most places can (13) reached in under an hour by taxi or the ubiquitous dolmus-minibus.
The (14) of facilities at the Tamarisk Beach Hotel near the small village of Ortakent makes (15) a good base. The family-run hotel—rooms and suites are in two-storey buildings (16) by palm trees and flowers in terracotta pots—sits above its own sandy (17) beach, shaded by tamarisk trees and sheltered by nearby islands.
The hotel is (18) child-friendly, too. Children, from infants up to young teenagers, can take part in a (19) of games and activities that include tuition in windsurfing, dinghy (20) catamaran sailing.

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单位负责人是指单位法定代表人。( )

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女性,28岁,发热1月余,T37.2℃~38℃,轻咳,少许白痰,带血丝。胸部X线检查见右上肺锁骨上下区有云絮状阴影,密度不均,诊断最可能为

A.浸润型肺结核

B.金黄色葡萄球菌肺炎

C.干酪性肺炎

D.克雷白杆菌肺炎

E.肺脓肿

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