问题
单项选择题 A1/A2型题
引起伤寒不断传播及流行的主要传染源是（）。
A.潜伏末期病人
B.极期病人
C.恢复期带菌者
D.慢性带菌者
E.恢复期病人
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
引起伤寒不断传播及流行的主要传染源是（）。
A.潜伏末期病人
B.极期病人
C.恢复期带菌者
D.慢性带菌者
E.恢复期病人
参考答案：D
| 完形填空。 | |||
| We 16 four new students in our class. One is Tom. He 17 England. He speaks 18. John's 19 the United States. He speaks English, 20.And Michiko 21 a Japanese. She lives 22 Tokyo. But she is in Beijing 23 her parents. The last one is Peter. He's from 24 . He speaks English and French. We are in 25 same class. We are good friends. | |||
| ( )1. A. have ( )2. A. come from ( )3. A. Chinese ( )4. A. at ( )5. A. too ( )6. A. am ( )7. A. at ( )8. A. and ( )9. A. Australia ( )10. A. a | B. has B. come B. Japanese B. from B. also B. is B. to B. or B. Canada B. an | C. don't have C. is from C. England C. with C. either C. are C. in C. to C. Japan C. the | D. there are D. from D. English D. of D. or D. be D. / D. with D. America D./ |