直流电源供电长度为50m的具有防爆性能闪烁型照明线型号表示为()。
A. JZ50Z-BS
B. JZ50Z-C
C. JZ50J-C
D. JZ50J-BC
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船舶在驶近可能被居间障碍物遮蔽他船的狭水道或航道的弯头时,应特别机警和谨慎地驾驶,这里的特别机警和谨慎地驾驶包括:().
A. 在听到弯头另一端有他船的声号时,应做到顶水船让顺水船,在弯头下游处等待,避免两船在弯头会遇
B. 在弯头地段,为减少航程缩短过弯时间,可以抄近路而短暂驶入他船的航道
C. 在任何时候均应以能维持舵效的最小速度过弯
D. 在弯头地段,为减小流对操纵性的影响,可在航道左侧行驶
经尿道前列腺电切术不慎造成真性尿失禁主要为尿道哪一部位损伤()
A. 尿道外口狭窄
B. 尿道膜部损伤
C. 尿道假道形成
D. 尿道内口狭窄
E. 尿道球部损伤
肉的结缔组织的主要纤维有()、()和网状纤维,并以前两种为主。
Most people have no idea of the hard work and worry that gointothe collecting of those fascinating birds and animals that they pay to see in the zoo.One of the questions that is always asked of me is 1 I became an animal collector in the first 2.The answer is that I have always been interested in animals and zoos.According to my parents, the first word I was able to say with any 3 was not the conventional “mamma” or “daddy”,4 the word “zoo”, which I would 5 over and over again with a shrill 6 until someone, ingroupsto 7 me up, would take me to the zoo.When I 8 a little older, we lived in Greece and I had a great 9 of pets, ranging from owls to seahorses, and I spent all my spare time 10 the countryside in search of fresh specimens to 11 to my collection of pets.12 on I went for a year to the City Zoo, as a student 13 , to get experience of the large animals, such as lions, bears, bison and ostriches,14 were not easy to keep at home.When I left, I 15 had enough money of my own to be able to 16 my first trip and I have been going 17 ever since then.Though a collector's job is not an easy one and is full of 18 ,it is certainly a job which will appeal 19 all those who love animals and 20. 请在15处填上正确答案()
A. luckily
B. gladly
C. nearly
D. successfully