题目内容
A2mm
B25～03mm
C5～20mm
D5～10mm
E4mm
开面冠的颈环宽度为
查看答案
搜索结果不匹配？点我反馈
更多问题
为了加强对期货公司的监督管理，促进期货公司加强内部控制，防范风险，根据()制定《期货公司风险监管指标管理试行办法》。
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient people believed that lightning and thunder were the weapons of the gods. In reality, lightning is a flow of electricity formed high above the earth.
The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning rod. This device protects buildings from damage by lightning.
Scientists estimate that there are about 2 billion flashes of lightning per year. Lightning hits the Empire State Building in New York City 30 to 48 times a year. In the United States alone it kills an average of one person every day.
The safest place to be in case of an electrical storm is in a closed car. Outside, one should go to low ground and should not get under trees. Also, one should stay out of water and away from metal fences. Inside a house, people should avoid open doorways and windows and should net touch wires or metal things.
(1)
pH＞7.45表示
如患者2天前来就诊，对该患者的处理应该是
微信支付 
支付宝支付