TYJL-II型计算机联锁，道岔挤岔，屏幕道岔名称显示（）。A.红色 B.红色闪光

When his wife died, he lived ______; his lovely pet dog made him feel less ______.

A．alone, alone

B．lonely; alone

C．lonely; lonely

D．alone; lonely

根据要求转换下列句型,每空一词。

1.He often goes home on foot. (同义句转换)

He often                       .

2.My sister does housework at the weekend.(否定句)

My sister                    housework at the weekend.

3.The girl in red is Tom' sister.(划线部分提问)

             girl is Tom's sister?

4.Does Jim help his mother do the housework?(改为陈述句)

Jim          his mother do the housework.

5.There is a knife at home.(对划线部分提问)

How many                      there at home?

6.They are old computers.(改为单数句)

                      old computer.

中国画中的用墨，历来的画家都很讲究，主要是运用（）的技巧，唐张彦远《历代名画记》曰：墨分五色，即焦、浓、重、淡、清五种，这就是中国画用墨的奇妙处。

光纤的纤芯强度取决于纤芯和包层的光学性能。

写原始记录表（簿）做法不当的是（）。

A、原始记录应用钢笔或中性笔填写

B、为方便起见，可将观察值先记在白纸上，再转抄到专用记录表（簿）上

C、观察值直接填写在记录表（簿）上

D、原始记录不能用铅笔填写