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【判断题】
右手螺旋定则：磁感线方向与电流方向的关系可以用定则判断，也称右手螺旋定则。A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】According to GNH, people are happier if they
A.
have new technology
B.
can change their religion
C.
have a good, stable government
D.
have more money
【单选题】What can we infer from the text?
A.
People can now feel relieved about the nutrition in McDonald's food.
B.
We can no longer find French fries in children's Happy Meal.
C.
Fries, drinks and sandwiches are regarded as fatandcalories laden.
D.
McDonald spends $80 billion on fresh fruits and vegetables.
【单选题】食管裂孔疝可以无症状或症状轻微，其症状轻重与疝囊大小、食管炎症的严重程度无关，归纳起来有三个方面的表现，但下列不符合的是
A.
胃食管反流症状，胸骨后或剑突下烧灼感、上腹饱胀、反胃、暖气、呕吐
B.
腹内压突然增高，疝囊破裂，致腹内脏器进入胸腔
C.
反流性食管狭窄，吞咽困难，吞咽疼痛，食后呕吐
D.
突然剧烈上腹痛伴呕吐，不能吞咽，提示发生急性嵌顿
E.
疝囊压迫心肺、纵隔，产生气急、心悸、发绀;压迫食管，吞咽困难
【单选题】____ red is a symbol of warmth, it can sometimes make people feel uneasy or even frightened. [ ]
A.
As
B.
Since
C.
If
D.
While
【单选题】It can be concluded from the research of the university that most people feel happy when ______.
A.
they are at leisure
B.
they are gardening
C.
they are engaged in working
D.
they have numerous lovers
【简答题】小的,轻微的,不严重的
【单选题】Why do some people feel excited?
A.
They can buy electronic books.
B.
They can buy almost everything on the Internet at home.
C.
There will be online shops on the Internet.
【简答题】Young people can feel frustrated and ______ because of their age.
【单选题】食管裂孔疝可以无症状或症状轻微，其症状轻重与疝囊大小、食管炎症的严重程度无关，归纳起来有三个方面的表现，但下列不符合的是
A.
胃食管反流症状，胸骨后或剑突下烧灼感、上腹饱胀、反胃、嗳气、呕吐
B.
腹内压突然增高，疝囊破裂，致腹内脏器进入胸腔
C.
反流性食管狭窄，吞咽困难，吞咽疼痛，食后呕吐
D.
突然剧烈上腹痛伴呕吐，不能吞咽，提示发生急性嵌顿
E.
疝囊压迫心肺、纵隔，产生气急、心悸、发绀；压迫食管，吞咽困难
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