皮皮学，免费搜题
登录
搜题
【多选题】
关于成纤维细胞的描述哪些正确?A.
是疏松结缔组织的主要细胞。
B.
能分泌产生细胞外纤维和基质。。
C.
功能j静止时可转化为纤维细胞。
D.
能分泌多种细胞因子，参与过敏反应。
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
【简答题】《诗经》根据( )分为风、雅、颂三部分。
【简答题】运行下面的程序,如果从键盘上输入5,则输出结果为______。 main( ) { int x; scanf("%d",&x); if(x++>5) printf("%d",x); else printf("%d",x--); }
【简答题】We cannot really love anybody with whom we never laugh.
【单选题】We shouldn't laugh at the disabled people. It is probable one day we will _________ with a disability.
A.
make up
B.
come up
C.
end up
D.
get up
【单选题】Paragraph 2 suggests that______.
A.
we always laugh with other people
B.
laughter is a form. of communication
C.
Robert Provine often laughs more frequently than the average person
D.
that it is hard to tell yourself a joke
【单选题】We may laugh at clothing that seems ridiculous to us. Laugh at means ____________.
A.
be amased at
B.
make fun of
C.
be amused with
D.
smile at
【简答题】____年，上海证券交易所开始XBRL报告试点。 A、2001 B、2002 C、2003 D、2004
相关题目：