《煤矿机电运输管理规定》要求:主运斜巷钢丝绳主钩头应用U型绳卡、护绳环共同组成,并保证每个钩头卡子数目不少于()副。
A、3
B、5
C、6
D、4
参考答案:D
如图表示发生在绿色植物体内的某些生理过程示意图,请回答:
(1)分析气体变化可知,A生理过程表示______作用;B生理过程表示蒸腾作用;C生理过程表示______作用.
(2)D过程表示根吸收的水和无机盐沿着茎的木质部中的______向上运输.
(3)植物体内所有活细胞都能进行的生理过程是______(填图中序号).
(4)植物的根系保证了E过程的进行,它表示植物的根吸收.植物的根只有在根毛细胞内液浓度______(填大于、小于或等于)土壤溶液浓度时,才能吸收水和无机盐.
用所给单词的适当形式填空
1. Will it be __________(wind) the day after tomorrow?
2. Look, there are too many people there. It's always __________(crowd) at weekends in big stores.
3. The film is __________(real) interesting.
4. The baby was __________(sleep) when I came in.
5. He stopped __________(talk) with me when he saw me.
6. The trains only run __________(two) an hour on Sundays.
7. This line is moving __________(slow).
8.I hate __________(travel) by bus.
9. I'm __________(good) at playing the piano and writing the singing.
10. There are many people waiting in line __________(buy) train tickets.