【单选题】四面斜坡,有一条正脊和四条斜脊,屋面稍有弧度的屋顶是( )。
【单选题】明装先关应设管卡固定,且,在终端、弯头中点处的()mm范围内应设管卡。
【简答题】伊斯兰教的创立者是谁?622年,他带领少数信徒在哪里建立起什么国家?663年他病逝后,阿拉伯半岛已经出现了什么政治局面?
【简答题】小明利用如图所示的装置对眼睛的成像原理进行探究,凸透镜的焦距f=10cm. (1)实验前,必须将烛焰、凸透镜、光屏三者的中心调整到________________上. (2)图中的凸透镜相当于眼睛的晶状体,光屏相当于眼睛的________________.此时应将光屏向________________移动,光屏上才可接收到一个清晰的倒立、缩小的实像. (3)若进一步探究远视眼的成因,小明应更换一个...
【单选题】Directions: Read the following passage carefully. The passage is followed by some questions or unfinished sentences. For each of them there are four choices marked A, B, C, and D. Choose the best answ...
A.
To appeal for equal treatments of animals as we treat human beings.
B.
To advocate a fight against those who mistreat animals.
C.
To show humans and animals are treated in different ways.
【单选题】Select the most appropriate argumentative thesis statement for the given topic. Topic: The link between racism and gender discrimination in the 1960s .
A.
The decade-long struggle for women's and other minorities' rights culminated in 1972 when the U.S. Congress passed the Equal Rights Amendment.
B.
In the 1960s, key civil rights leaders often neglected the rights of African-American women in order to pass what they considered "essential" equal rights legislation .
C.
In the 1960s, African-American women had to face different kinds of discrimination than those confronting African-American men .