问题
单项选择题
引起伤寒不断传播或流行的主要传染源是( )
A．慢性带菌者
B．潜伏期患者
C．恢复期患者
D．普通型患者
E．顿挫型患者
答案
参考答案：A
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引起伤寒不断传播或流行的主要传染源是( )
A．慢性带菌者
B．潜伏期患者
C．恢复期患者
D．普通型患者
E．顿挫型患者
参考答案：A
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| I stood in the doorway, watching my older brother carefully putting clothes into his bag. I coughed uneasily. When he realized that I was there, Rocky turned toward me 1 a sad smile. "I'm 2 tomorrow," he said. "I know." My 3 was almost a whisper (低声, 耳语). I was angry at 4 for being so weak, but I wasn't about to (将要) cry. "My 5 is early, so you haven't enough time to come to the airport," he said. Seeing the sad look on my face, he quickly added, "I 6 I won't leave without saying goodbye." I tried to say 7 but didn't. It's always better to 8 if you're about to cry. "You promised you wouldn't cry," he said to me, thinking that I was to cry. I remember the day he 9 me how to ride a bike. At first I thought he was always right behind me, holding the seat to keep me from 10 . I was happy with this, but he knew he 11 hold me up all my life. He told me that one day he would have to leave. His coughing stopped my 12 . What was left to say? 13 could I say goodbye to the person who taught me everything? The next morning I 14 , looked at my alarm clock, and realized he had left 15 before. We never even said goodbye. Goodbye, Rocky! Although he may have been many miles away, I knew he heard me, even if it was only an answer in his heart. | ||||
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