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【多选题】
关于连接管的保护，下列说法正确的是（ ）。A.
保护保护导线接续管不受弯
B.
一般由两个半圆形钢管组成
C.
在安装间隔棒时或在放线中接线管通过最后一个放线滑车时拆除
D.
保护放线滑车
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【简答题】The most informal note is _______ because the sentences are _______ and incomplete.
【单选题】Among the following opening sentences, which is the most informal?
A.
I am writing regarding ......
B.
I wanted to follow up on......
C.
Let's confirm our plan for this month.....
D.
I would like to ask about......
【简答题】In England, afternoon tea, taken between four and five, is the most informal(非正式的) meal of the day. If you are a friend of the family, you may drop in for tea without an invitation（邀请） or telling that...
【简答题】阅读理解。 In England, afternoon tea, taken between four and five, is the most informal (非正式) meal of the day. If you are a friend of the family, you may drop in for tea without an invitation or telling th...
【简答题】In England, afternoon tea is the most informal (非正式) meal of a day. It is taken between four and five. If you are a friend of the family, you may come for tea at any time. Very often it is not taken a...
【单选题】某主族元素的原子，核外有四个电子层，最外层有7个电子。下列关于此元素的说法中正确的是（ ）
A.
其单质的氧化性比Cl 2 强
B.
其氢化物的稳定性比HCl强
C.
其原子半径比氯的原子半径大
D.
其简单阴离子的还原性比Cl － 弱
【简答题】听力原文： In England, afternoon tea, taken between four and five, is the most informal meal of the day. If you are a friend of the family, you may drop in for tea without an invitation or telling you are ...
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