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【单选题】
能保护人体，防止乙肝病毒感染的是（）A.
HBsAg
B.
抗-HBs
C.
HBeAg
D.
抗-HBe
E.
抗-HBc
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举一反三
【单选题】The doctor was not pleased with Bob because______.
A.
he brought him a different watch
B.
he was sure Bob had stolen the watch
C.
he could see that Bob had a knife
D.
he didn't listen to his speech
【简答题】Bob was happy. He was at a new school ,and the other students were friendly.'Hi,Bob!' they said. But some students said,'Hi,Peter !'Bob didn't understand. He asked another student, 'Why do some stud...
【简答题】阅读理解 Bob is an English boy. He is a good student. He is in a white coat. Amy is a girl. She is Bob's sister. She is a very nice girl. She is in a green sweater. Lucy and Lily are Americans. They are s...
【单选题】设计螺栓组联接时,虽然每个螺栓的受力不一定相等,但对该组螺栓仍采用相同的材料、直径和长度,这主要是为了
A.
受力均匀
B.
使联接牢固
C.
便于降低制造成本
D.
便于加工和安装
【简答题】Many parents want their children to be famous one day. But do children have the same ? A new —Hi, Ke'ai is on at Beijing Children's Art Theatre. It tells the story of a boy called Ke'ai. His parents w...
【多选题】What are the characteristics of tourist resources?
A.
Diversity
B.
Fixed attractiveness
C.
Monopolization
D.
Non-regeneration
E.
Renewability
F.
Regeneration
【多选题】what are the tourist supposed to fill in the form?
A.
the time they want to get laundry back
B.
Whether they need clothes ironed
C.
Whether they need clothes washed
D.
Whether they need clothes dry-cleaned
【简答题】读短文，判断句子对(√)错(×)。 This is my brother, Bob. He is very tall. He is handsome. ( ) 1. Bob is a girl. ( ) 2. Bob is very short. ( ) 3. Bob is handsome.
【多选题】What are the characteristics of tourist product?
A.
Intangibility
B.
Non-transferability
C.
Non-storage
D.
Producing and consuming synchronization
E.
Comprehensiveness
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