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【单选题】
在针对特异性变的减敏治疗中，诱导机体产生的封闭抗体是A.
IgA
B.
IgG
C.
IgE
D.
IgM
E.
IgD
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【单选题】Some recent studies show that sports can not only help girls improve their health but also help them do better at school and in their daily life. Nacy Smith, 14, joined the football team when she was ...
A.
friendlier
B.
funnier
C.
happier
D.
angrier
【单选题】Some recent studies show that sports can not only help girls improve their health but also help them do better at school and in their daily life. Nacy Smith, 14, joined the football team when she was ...
A.
classmates
B.
parents
C.
friends
D.
studies
【单选题】Some recent studies show that sports can not only help girls improve their health but also help them do better at school and in their daily life. Nacy Smith, 14, joined the football team when she was ...
A.
. go to the best college
B.
make more friends
C.
. improve their self-confidence
D.
look after themselves well
【简答题】Direction: Complete the sentence with a proper word on P. 42 of your textbook. Change the word form if necessary. The information in the brackets can help you to decide what kind of word you should ch...
【单选题】Some recent studies show that sports can not only help girls improve their health but also help them do better at school and in their daily life. Nacy Smith, 14, joined the football team when she was ...
A.
was 16 years old
B.
was in Grade 8
C.
met a lot of good friends
D.
felt bored
【多选题】问题4:在餐饮服务视频中,该导游的服务存在哪些不足(多选题)
A.
没有介绍餐厅、菜肴，没有说明用餐规定
B.
没有联系餐厅服务员，没有问清用餐地点
C.
没有等客人的第一个热菜上桌便离开，没有事先询问客人口味要求
D.
对菜肴卫生问题不予理睬，对客人服务态度不佳
E.
个别客人要求未区别对待，换餐需要另行收费没有事先说明
F.
把问题丢给客人，威胁后边行程无法保证
G.
收取现金没有记录，可能导致账目不清楚
【单选题】I felt much ________ after I told the problems to my close friend .
A.
good
B.
well
C.
better
D.
best
【多选题】下列有关桥墩类型的分类说法正确的有( )
A.
按照构造划分为实体桥墩、空心桥墩、柱（桩柱） 式桥墩、框架桥墩
B.
按照截面形式划分为矩形桥墩、圆形桥墩、圆端形桥墩、尖端形桥墩
C.
按照材料组成可分为就地浇筑桥墩、预制安装桥墩
D.
按照施工工艺划分为 就地浇筑桥墩、预制安装桥墩
E.
按照受力划分为刚性桥墩、柔性桥墩
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