5.There are many ways to ________ and _________.

5.There ________ two English books and a Chinese book in my bag.

5.There is no doubt that the media play a key role in the struggle against organized crime and corr________.

5.There was a burst of laughter ______ the joke. A: followed B: following C: to be followed D: being followed

中国大学MOOC: 5.There is no doubt that the media play a key role in the struggle against organized crime and corr________.

5.There were dirty marks on the trousers ________ she had wiped her hands. A: where B: which C: when D: that

5.There are certain ___women should take during pregnancy,for instance,avoiding certain food and being careful about contact with animals. A: sanction B: precautions C: shield D: shelter

Section BListen to the following sentences and write down what you hear on the lines.1.He’s always ____________about the future. He thinks everything will be OK. 2.When the economy is bad, there aren’t many job ____________. 3.Why are you in such a ____________? Slow down! 4.Anna is very ____________. She always expects the worst. 5.There are many different ____________you need to think about.

【单选题】要指定一个绝对位置 5 , 5 的点,应该输入: () @5 , 5 5 》 5 5 , 5 5<5< span=""> A. @5，5 B. 5》5 C. 5，5 D. 5<5

根据乘方的意义可知：53=5×5×5，54=5×5×5×5，则53×54=（5×5×5）×（5×5×5×5）=57即53×54=57。想一想：