皮皮学，免费搜题
登录
搜题
【单选题】
为迅速判别增、减环,可先给封闭环任定一个方向并画出箭头,然后依次沿着此方向给每个组成环画出箭头,凡箭头方向和封闭环相同的为 ( ) 。A.
增环
B.
封闭环
C.
减环
D.
间接环
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】阅读下面短文,将短文中画线部分的句子翻译成中文。 1.When I was growing up, I was embarrassed( 尴尬的 ) to be seen with my father. He was very shot, what’s more, something was wrong with his foot. When we walked together, people ...
【单选题】徐某开设打印设计中心并以自己名义登记领取个体工商户营业执照,该中心未起字号。不就,徐某应征入伍,将该中心转让给同学李某经营,未办理工商变更登记。后该中心承接广告公司业务,款项已收到却未能按期交货,遭广告公司起诉。下列哪一项是本案的适格被告?
A.
李某
B.
李某和徐某
C.
李某和该中心
D.
李某、徐某和该中心
【简答题】探索两个相交的平面的公共部分 (1)如图一,两个不重合的平面有公共点P,那么这两个平面的公共部分 (A、是一条直线;B、是一条线段;C、只有点P),且点P (A、不在这条直线上;B、在这条直线上;C、在这条线段上)。 (2)如图二,借助四棱锥S-ABCD探索两个相交的平面的公共部分。 面SAB与面SAD的公共部分是 (A、线段SA;B、直线SA) 面SAB与面SCD的公共部分是 (A、一条过点S的...
【简答题】One day, Peter had a fight with one of his classmates. Then he went to his grandfather and told him his story 1 . “ He is really bad. ” the boy said, “ and I 2 him. ” The grandfather said,“ 3 me tell ...
【简答题】阅读理解。 Fred liked playing tricks on others. One afternoon he went to a shop and bought some bread. On his way home he saw Johnson, an old man about sixty riding a donkey (驴). The boy walked to the old ...
【简答题】When I was small, I was very shy. I (81) ________ went out to play with other children. One day, my cousin asked me to play soccer with him. But I was (82) ________(worry) that the ball would hit(打) m...
【单选题】徐某开设打印设计中心并以自己名义登记领取了个体工商户营业执照，该中心未起字号。不久，徐某应征入伍，将该中心转让给同学李某经营，未办理工商变更登记。后该中心承接广告公司业务，款项已收却未能按期交货，遭广告公司起诉。下列哪一选项是本案的适格被告?
A.
李某
B.
李某和徐某
C.
李某和该中心
D.
李某、徐某和该中心
【简答题】He said others went swimming, only he himself didn't.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
