What are the ways to keep a conversation going?
A. Expressing agreement
B. Asking questions
C. Making guesses
D. All of the above
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What are the important elements of a personal letter?
A. Date
B. Greeting
Content
D. Closing and Signature
What are the features of oral English?
A. short and simple，incomplete sentences
B. long and complete sentences
C. words that are not usually used in written English
D. formal words
昏迷患者应采取（ ）
A. 俯卧
B. 侧卧
C. 中凹
D. 去枕仰卧
E. 半坐卧位
某患者，有心脏病史，自行调节输液速度后，出现极度呼吸困难，咳嗽，请问应采取的卧位是（ ）
A. 侧卧
B. 半坐
C. 头低足高
D. 头高足低
E. 端坐位
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