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【多选题】
不同临床病理类型的病毒性肝炎的发生原因主要与哪些因素有关A.
病毒量不同
B.
病毒的种类不同
C.
机体的免疫状态不同
D.
病毒毒力不同
E.
感染的时间不同
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反馈参考答案：
举一反三
【单选题】Which floor does Linda live on?
A.
The fourth floor.
B.
The sixth floor.
C.
The fifth floor.
【简答题】Over forty years (pass) ______ since the first bridge was built in the district.
【单选题】The teacher knows that you are always the first ________ to the classroom since last September.
A.
coming
B.
to come
C.
came
D.
has come
【单选题】The first use of atomic weapons was in 1945, and their power _____ increased enormously ever since. [ ]
A.
is
B.
was
C.
has been
D.
had been
【单选题】________I met him，he was working as a secretary in a big company.
A.
Since the first time
B.
The first time
C.
For the first time
D.
The first time which
【单选题】The teacher knows that you are always the first ________ to the classroom since last september.
A.
coming
B.
to come
C.
came
D.
has come
【单选题】Which floor is the meeting room?
A.
On the fifth floor.
B.
On the sixth floor.
C.
On the fourth floor.
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