皮皮学，免费搜题
登录
搜题
【单选题】
牙周病中牙齿松动的直接原因是
A.
牙槽骨的吸收破坏
B.
牙脓
C.
牙变性
D.
牙出血
E.
炎症反应
拍照语音搜题，微信中搜索"皮皮学"使用
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】The young ______ hard to get a better life these days.
A.
is working
B.
have worked
C.
has worked
D.
are working
查看完整题目与答案
【单选题】These days both the young and the old are getting interested WeChat. A . on B . in C . at D . to
A.
． on
B.
． in
C.
． at
D.
． to
查看完整题目与答案
【判断题】图书馆数字资源中的 超星期刊、 超星移动图书馆、超星读秀学术搜索知识库、 中国知网(CNKI)数字资源库只能在校园局域网之内使用。 请问 该说法是否正确?
A.
正确
B.
错误
查看完整题目与答案
【简答题】5-2课堂练习1.ppt
查看完整题目与答案
【简答题】过 x 轴和点( 4 , -3 , -1 )的平面方程为 .
查看完整题目与答案
【判断题】设平面通过x轴和点(4,-3,-1),则该平面的方程为 ( ).
A.
正确
B.
错误
查看完整题目与答案
【单选题】These days many young people are keen on Korean love TV series (韩剧). The underlined part means _______. [     ]
A.
dislike
B.
turn to
C.
are proud of
D.
are fond of
查看完整题目与答案
【单选题】These days some young people just ________ work hard because they have got used to the easy life provided by their parents.
A.
mustn’t
B.
won’t
C.
mightn’t
D.
shouldn’t
查看完整题目与答案
【单选题】These days the young to phone than write.
A.
attend
B.
pretend
C.
attempt
D.
tend
查看完整题目与答案
【简答题】These days, young children can enjoy directly what it is like to be a marine biologist (海洋生物学家) at a marine association. What they discover can lead them to appreciate and protect the ocean and also t...
查看完整题目与答案
相关题目：
【单选题】The young ______ hard to get a better life these days.
A.
is working
B.
have worked
C.
has worked
D.
are working
查看完整题目与答案
【单选题】These days both the young and the old are getting interested WeChat. A . on B . in C . at D . to
A.
． on
B.
． in
C.
． at
D.
． to
查看完整题目与答案
【判断题】图书馆数字资源中的 超星期刊、 超星移动图书馆、超星读秀学术搜索知识库、 中国知网(CNKI)数字资源库只能在校园局域网之内使用。 请问 该说法是否正确?
A.
正确
B.
错误
查看完整题目与答案
【简答题】5-2课堂练习1.ppt
查看完整题目与答案
【简答题】过 x 轴和点( 4 , -3 , -1 )的平面方程为 .
查看完整题目与答案
【判断题】设平面通过x轴和点(4,-3,-1),则该平面的方程为 ( ).
A.
正确
B.
错误
查看完整题目与答案
【单选题】These days many young people are keen on Korean love TV series (韩剧). The underlined part means _______. [     ]
A.
dislike
B.
turn to
C.
are proud of
D.
are fond of
查看完整题目与答案
【单选题】These days some young people just ________ work hard because they have got used to the easy life provided by their parents.
A.
mustn’t
B.
won’t
C.
mightn’t
D.
shouldn’t
查看完整题目与答案
【单选题】These days the young to phone than write.
A.
attend
B.
pretend
C.
attempt
D.
tend
查看完整题目与答案
【简答题】These days, young children can enjoy directly what it is like to be a marine biologist (海洋生物学家) at a marine association. What they discover can lead them to appreciate and protect the ocean and also t...
查看完整题目与答案