【单选题】Which of the following usually causes a tree to grow unhealthy?
A.
Giving a tree a special shape and a definite height.
B.
Removing small side branches and making a tree look less thick.
C.
Allowing too many branches to grow in the middle.
D.
Having a tree surrounded by many other trees.
【单选题】— If you could reduce the price _____ $20, I could increase my order. — I'm afraid the best I can do is $22. [ ]
【单选题】Which of the following is true in describing the black walnut tree?
A.
The black walnut tree is valued for its nuts.
B.
The black walnut tree is famous for its size.
C.
Every walnut tree is highly valuable and profitable.
D.
A single black walnut tree was once sold for $11,000.
【单选题】楼层框架梁KL端支座采用加锚头或锚件锚固时,锚固长度为( )。
B.
端柱宽-柱保护层厚度-柱箍筋直径-柱外侧纵筋直径
【单选题】“________ I have a glass of beer?” “ No, I’m afraid you ________.”
【单选题】But for your support then, I don’t think we _____ the task.
【单选题】---- Could I borrow your bike? ---- I’m afraid you _______.
【单选题】—Could you go to the beach with us this weekend? —I'm sorry I can't. I ______ study for the history test. [ ]
【单选题】The next day he [Raven] used magic to change himself into a small leaf from a tree and fell into a river.
A.
The following day, Raven magically transformed himself into a leaf, which dropped into a river.
B.
The next day, Raven magically transformed himself into a small leaf from a tree and fell into a river.
C.
The following day, Raven used his magical powers to transform himself into a leaf and then dropped into a river that ran near the chief's house.
D.
The following day, Raven used magic to transform himself into a leaf and fell into a river.
【单选题】三个代表重要思想的核心观点是 ______。