皮皮学，免费搜题
登录
搜题
【单选题】
Listeners usually react negatively to slang, jargon, and bad grammar in public speeches. Which is the key difference between public speaking and everyday conversation?A.
Public speaking is more highly structured than ordinary conversation.
B.
Public speaking requires more formal language than ordinary conversation.
C.
Public speaking requires a different method of delivery from ordinary conversation.
D.
none of above
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】Would you go to the concert with me?__________, but I'm very busy now.
A.
I'd like to
B.
Sure
C.
No problem
D.
Certainly
【简答题】自行车的前轮轴是 轴。
【多选题】关于HLA-II类分子的叙述,下列哪项正确
A.
由HLA-DP、HLA-DQ、HLA-DR基因编码
B.
分布在APC表面
C.
Th识别抗原时必须同时识别的结构
D.
Tc杀伤靶细胞时必须同时识别的结构
E.
T淋巴细胞激活后可表达HLA-Ⅱ类分子
【单选题】关于HLAⅡ类分子的叙述，下列错误的是
A.
由HLA-DP、HLA-DQ、HLA-DR基因编码
B.
Tc杀伤靶细胞时必须同时识别的结构
C.
Th识别抗原时必须识别的结构
D.
仅表达于淋巴样组织中的各种细胞表面
E.
活化的T细胞表面可表达HLAⅡ类分子
【单选题】听力原文：M: Would you like to go to the concert this evening? W: I'd like to, but I have some homework to do. Q: What does the woman mean? (13)
A.
She'll surely go.
B.
She's not interested.
C.
She will not go.
D.
She will not do her homework.
【单选题】听力原文：M：Would you like to go to the concert this evening? W：I'd like to, but I have some homework to do． Q：What does the woman mean? (8)
A.
She'll surely go.
B.
She's not interested.
C.
She will not go.
D.
She will not do her homework.
【简答题】科学家发现两根平行导线通电后有如图所示的现象（图中实线、虚线分别表示通电前、后的情况）。 （1）由图可知两平行通电导线之间有力的作用。当通入的电流方向相同时，导线相互 ；当通入电流方向相反时，导线相互 。 （2）判断通电直导线周围磁场方向的方法是：用右手握导线，大拇指指向电流方向，则四指环绕的方向就是通电直导线周围的磁场方向。根据这个方法，请你判定甲图中导线 a 在导线 b 处产生的磁场方向为垂直...
相关题目：