(4分)下列物质:①H2SO4②NaOH ③NaCl ④CO2 ⑤Cu ⑥蔗糖 ⑦H2CO3⑧盐酸属于电解质的是 ;属于非电解质的是 。(填序号)
①②③⑦;④⑥。(每空2分)
第二节 语法填空(共5小题,每小题1分,满分5分)
阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为31—35的相应位置上。
Finishing their shopping at the mall, a couple discovered that their new car had been stolen .They filed a report at the police station and a detective drove them ____31____ to the parking lot to look for evidence.
To their ____32____ (amaze), the car had been returned and there was a note in it that said: “I apologize for taking your car. My wife was having a baby and I had to rush her to the ____33_____. Please forget the inconvenience. There are two tickets for tonight's Mania Twain concert.”
Their faith in humanity restored. The couple attended ____34____ concert. But when they returned home, they immediately found that their house had been ransacked (洗劫). On the bathroom mirror was ____35_____ note: “I have to put my kid through college somehow, don't I? ”
钱学森很注意捕捉灵感,发挥灵感的神奇作用。他认为,灵感的出现常常带给人们渴望已久的智慧之光。下列关于灵感的认识,正确的是()
A、灵感的捕捉是以合理想象为基础的
B、外因是获得灵感的决定性因素
C、捕捉灵感必须充分发挥人的主观能动性
D、思维创新是灵感的源泉