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【多选题】
木屋架制作中,因选料不当引起的节点不牢、端头劈裂现象的防治办法是()
A.
作为承重木结构,其用料应符合现行的《木结构工程施工及验收规范》中规定的木材质量标准
B.
要严格按各杆件的受力选用相应的木材等级
C.
采用易裂树种作屋架下弦时应“破心下料”
D.
木材裂缝处不宜用在下弦端点及接头处。对斜裂纹要按照规范要求严格限制
E.
加工时,划线、锯削要准确,组装时,各节点连接要严密
F.
发现屋架高度超差时,应首先检验各杆长度。若各杆长度基本正确,则可放松钢拉杆螺母,采用逐个分数次上紧钢螺母的方法加以调整
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举一反三
【单选题】The dog was taken for a walk,______?
A.
wasn't it
B.
doesn't it
C.
isn't it
【单选题】The dog was taken for a walk, ?
A.
wasn't it
B.
doesn't it
C.
isn't it
D.
is it
【单选题】听力原文:M:Hi,Betty,may I have a discussion about the training program with you? W:Sure,take a seat,please. M:We are planning a training program for the new employees. They have to learn how to use the ma...
A.
All staff.
B.
Young workers.
C.
New employees.
D.
Department managers.
【单选题】听力原文:W:So,what did you think about the discussion at lunch? I didn't realize people have such strong feelings about politics. M:Are you kidding? That subject always touches a nerve. Q:What does the ma...
A.
No one was interested in the discussion.
B.
Politics is a sensitive topic.
C.
The woman is not being serious.
D.
People should avoid discussing politics.
【单选题】听力原文:W: So, what did you think about the discussion at lunch? I didn't realize people have such strong feelings about politics. M: Are you kidding? That subject always touches a nerve. Q: What does th...
A.
No one was interested in discussing politics.
B.
People avoid discussing politics.
C.
The woman is not being serious.
D.
Politics is a sensitive topic.
【单选题】Steps will be taken to protect the African wild dog.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】以下不属于中国梦本质特征的是()。
A.
国家富强
B.
民族振兴
C.
社会和谐
D.
人民幸福
【判断题】3食用菌的湿度指培养料含水量和空气湿度
A.
正确
B.
错误
【判断题】当两侧或三侧均有电源时,应先从高压侧充电,再送至低压侧,并按照继电保护的要求调整变压器的中性点接地方式。
A.
正确
B.
错误
【单选题】听力原文:W: It's time Makes You Think, and today our subject for discussion is 'Exams: what are they good for'. Here in the studio to discuss exams we have Jason Green, educational psychologist Jason, I b...
A.
Because he has the idea that examinations have made the goal of exams becomes not learning, but rather the acquisition (获得) of the book knowledge.
B.
Because he thinks exams can increase our book knowledge.
C.
Because he thinks exams are completely useless.
D.
Because the examination system has lasted too long in history.
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