急性细菌性前列腺炎是主要致病菌
A.经血行感染所致B.经呼吸道感染所致C.经中间宿主传播所致D.经 * * 逆行感染所致E.经上尿路感染下行感染所致
参考答案:D
阅读理解。
Come and look at the photo. It's an American family. The woman in the middle is Beth White. She is our
teacher. The old woman on her right is her mother. She is Mrs. White. The man on her left is her father, Mr
White. He is an artist. The other young woman is Doris White. She is her sister. Doris White has two children.
They are students. Leo Bush is her son and May Bush is her daughter. May sits between her grandfather and
her father.
"What are they doing?"
"The family are having a big dinner on Thanksgiving Day (感恩节)."
1. This is _______ family photo.
A. an American
B. an English
C. a Chinese
2. There are _______ in Beth White's family.
A. six people
B. seven people
C. five people
3. They are having _______.
A. sports
B. a family meeting
C. a big dinner on Thanksgiving Day
4. Beth's family name is _______.
A. Smith
B. White
C. Bush
5. Leo and May's father is _______.
A. Mr White
B. Mr Smith
C. Mr Bush
旁路节流调速系统的效率一般比进、回油节流调速系统的效率高。