关于经线和纬线的叙述正确的是（    ）

下列关于植物组织培养中灭菌操作的叙述中，错误的是（ ）

2017年全国两会期间，全国人大代表、江西省委书记鹿心社在接受人民网记者专访时表示，江西把大力弘扬井冈山精神作为精神动力，将举全省之力打赢脱贫攻坚战，确保老区人民与全国人民一道全面建成小康社会。要确保老区人民与全国人民一道全面建成小康社会，需要（    ）

用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线上。
⑴We all love Mr Hu who is very kind and ____ (treat) us as his own children.
⑵____  you____ (hand) in the report today?
     Yes, I put it on your desk shortly after lunch .
⑶The cinema we used to go to____  (turn) into a hotel by the government in two years
⑷Timmy is active. He has many hobbies from____  (collect) stamps to outdoor-activities .
⑸The accident was so bad that all the doctors except Dr Li____  (save) the patients in danger at that time,
⑹He told us the boat would not float in the direction of wind if it____  (control).
⑺The old man was honoured for what he____  (do) for the poor since 10 years ago..
⑻The girl thought that her decision ____  (affect) her future study in college and job as well.

电热膜是一种新型的电热器件，电热膜是在绝缘的聚酯薄膜表面，经过特殊工艺加工形成的一条条薄的导电墨线，导电墨线两端与金属导线相连，形成网状结构，其内部结构如图甲所示．电热膜取暖器工作时，室内空气温度升高是通过____方式增加空气内能的．将此电热膜接入电路，正常工作时金属导线中A、B处电流分别为I_A和I_B，则I_A____I_B（选填“＞”、“＜”或“=”）；导电墨线电阻随温度变化的关系如图乙所示，电热膜不会因厚度不均而出现局部过热的现象，原因是____．