皮皮学，免费搜题
登录
搜题
【单选题】
关于斜度标注规则,斜度符号的方向应和( )一致A.
斜度方向
B.
水平方向
C.
竖直方向
D.
任意方向
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】阅读理解。 City College Union Inc Secretary/Typist The Union is a student-run organization with a permanent staff of 20. Typing speed of at least 60 wpm. he ability to take shorthand dictation (速 记) is req...
【简答题】In October, 1998, I was ______ to the position of chairman of the Student Union. A.suited B.appointed C.become D.indicated
【单选题】There is a(n) ______ that I'll be elected as the chairman of the student union.
A.
chance
B.
opportunity
C.
case
D.
occasion
【单选题】下面是以小麦为实验材料所进行的实验,其中叙述正确的是
A.
将发芽的种子研磨液置于试管内，加入斐林试剂，试管内立即呈现砖红色沉淀，这是因为发芽的小麦种子中含有还原性糖；
B.
利用小麦叶片进行 “ 观察 DNA 和 RNA 在细胞中的分布 ” 的实验时，叶片需要用酒精进行脱色处理，实验结果是绿色主要分布在细胞质，红色主要分布在细胞核；
C.
用显微镜观察小麦根尖成熟区表皮细胞，可观察到有丝分裂的图像，从而判断出每个细胞中的染色体数目
D.
若利用小麦根毛细胞进行质壁分离实验，由于观察的细胞无色透明，为了取得更好的观察效果，调节显微镜的措施是缩小光圈或换平面反光镜
【简答题】Student Services Students' Union Every University has a Students' Union. If students are the lifeblood of a university, the Union is surely its beating heart. For students, by students A Students’ Uni...
【简答题】Suppose the regular meeting of the Student Union this Friday is postponed to next Monday. Write a notice to all members to 1) inform. them about postponing the meeting, and 2) explain why. You should ...
【单选题】The graduate students will convene in the Student Union.
A.
converse
B.
meet
C.
summon
D.
raze
相关题目：