问题
单项选择题
在三相交流电路中，负载的连接方法有（）。
A、1种
B、2种
C、3种
D、4种
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
在三相交流电路中，负载的连接方法有（）。
A、1种
B、2种
C、3种
D、4种
参考答案：B
At least thirty times Bobby has attempted to climb the big snowy mountain, but he had never reached the top. His friend old Peeper, who knew a lot about his failures, 26 Bobby to try again. He gave Bobby a pair of 27 and said, “If it starts clouding over, put on the glassed, or if your feet start hurting, put them on too. The glasses are very 28 . They’ll help you.” Bobby accepted the gift without much thought. The day came when he was to have another try. About two hours after he started, he felt his feet hurting. Then he 29 what Peeper had said, and put on the glasses. The pain was pretty bad, but 30 the sunglasses he could see the snow-covered mountain top, so he went on. 31 , clouds were gathering. But this time Bobby could still see the 32 through the clouds. He kept climbing, leaving the clouds behind, forgetting his pain, and finally arriving at the top. It was certainly worth it. His feeling of 33 was extremely good, almost as great as that 34 view. The mountain below was surrounded by a sea of clouds. He couldn’t that the clouds were as 35 as that, so he looked more closely at the sunglasses, and discovered the secret. Peeper had engraved (镌刻) the snow-covered mountain top on the sunglasses, 36 Bobby could see it when he was looking upwards! Bobby 37 that the only obstacle (障碍) to reaching the top had been losing 38 when he couldn’t see the mountain top. He was thankful that Peeper had used that little 39 to help him see that his 40 was never impossible, and that it was still there, where it had always been.
小题3:A. real B. safe C. expensive D special 小题4:A. expressed B. remembered C. shouted D regretted
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