【单选题】家具中的有害物质主要来自木质人造板中固有的( )、家具制作过程中使用的胶粘剂,家具油漆过程中使用的涂料等。
【单选题】What is the main idea of this paragraph? The third quality of da Vinci's character that informs our work at MIT is an enthusiastic demand for making, designing, practicing, and testing, and for solvin...
A.
The third quality of da Vinci's character
B.
His fascination for tackling practical problems resembles the central mission of MIT.
C.
The third quality of da Vinci's character is his enthusiastic demand for making, designing, practicing, and testing, and for solving problems in the real world.
D.
Knowing is not enough; we must apply.
【简答题】以你所在班级为例说明哪些是正式组织,哪些是非正式组织?
【单选题】施工合同约定,风力超过8级以上的停工应给予工期顺延。某承包人在5月份一水塔高空作业的施工中遇7级风,按照安全施工管理规定的要求,停工5天,为此提出工期索赔的要求。其理由是当地多年气候资料表明5月份没有大风,此次连续大风属于不可预见的情况。该承包人的索赔理由属于( )。
【单选题】What is the third quality of da Vinci's character according to the passage?
A.
His disregard for the conventions.
B.
His ceaseless exploration of the Nature.
C.
His enthusiastic passion for solving practical problems.
【单选题】下面的应用,描述错误的是
A.
电子手表和计算器的液晶显示,是偏振光和旋光的应用。
C.
用显微镜观察生药切片或透明生物组织能看到彩色结构图片,是色偏振的应用。
D.
分光光度计是测量药剂(溶液)吸收光谱的仪器,这是超声波的应用。