上下两套地层连续沉积,这两套地层之间为什么接触关系?()
A.整合接触
B.角度不整合接触
C.假整合接触
D.非整合接触
参考答案:A
请根据句意或括号中的中文提示、英文释义,写出句中所缺单词,使句子通顺。
1. My classmates and I will go to the movies _____ (今晚).
2. He stayed at home and watched TV _____ (代替) of going out to play with his friends.
3. Suddenly there was a great crash of _____ (the loud noise following lightning).
4. Wearing dark glasses can _____ (keep something safe from danger) your eyes from the sun.
5. —Can you tell me your e-mail _____?
—Yes. It is Joe@126.com.
牧民,骑马跌落致开放性胫骨骨折,伤口长约2cm,X线片显示胫骨中段螺旋形骨折,腓骨无骨折,软组织可覆盖骨折端。
术后给予必要的抗生素治疗是防止感染的有效手段,该患者应用抗生素的方案中,不正确的是()
A.首选头孢菌素
B.清创术后4小时内开始应用
C.持续应用抗生素3~5天
D.在细菌培养报告前,选用广谱抗生素
E.若损伤发生部位同土壤有接触还应加用氨基糖甙类药物