当接头坡口表面铁锈等难以清理干净时,应选用抗裂性能好的碱性焊条。
查看答案
情景: 你正在家里独自吃午饭,邮递员送来一封电报。电报是你的大学同学王红从广州发来的,上面说她要来北京出差,要你晚上7点钟去机场接她。你丈夫中午在公司吃饭,不回家。 任务: 请你用英语给你丈夫写一张50字左右的便条。告诉他: ·你下午下班后要做什么; ·他下班后应该做些什么; ·晚饭后有什么安排。
______, I didn’t know how to use the machine.
A. [A] At beginning
B. At first
C. At start
Many of you are studing English and you may be (41) why it is so difficult to learn. It’s actually not too difficult to learn (42) you know some (43) about the language and culture that it reflects (反映)。 Perhaps the first thing you need to know about English is that it is made up of several other languages (44) French, German, Latin, Greek and Angle Saxon. In addition (此外), there are words (45) Spanish and many American Indian words and names, even some Chinese and Japanese (46) can be found in the English language. This borrowing of words (47) other languages is (48) of the key reasons (49) some of the difficulties that people meet with (50) they are learning English.
A. [A] that [B] something [C] one
Nasreddin had a shed(棚子)behind his house. It had no lights in it. One night he went out to the shed to get his ladders(梯子)and lost his ring(戒指)there. He left the ladder, went out into the street and began to look around. One of his friends saw him in the street outside his house, and said to him, " Hello, Nasreddin, what are you looking for" "My ring , "answered Nasreddin. "It fell off my finger. It is a silver(银的)ring with a red stone in it." "Oh, yes. "said the friend. "I remember it. I will help you to look for it. Where did you lose it" "In my shed." "But why don’t you look for it there" "Don’t be foolish! It is quite dark in my shed, how can I find my ring there Here there is light from the lamps in the street.\ Nasreddin had lost his ______.
A. ring
B. silver
C. money