大学生弘扬志愿精神、积极投身志愿服务活动,书写好新时代雷锋故事,应着重在( )上功夫:
A. 专业化;
B. 精准化;
C. 常态化;
D. 口头化。
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Things in the supermarkets are_______.
A. cheaper
B. more expensive
C. better
D. more
Which is not the advantage of online shopping?
A. Save money.
B. Easy and quick.
C. Paying over the Internet isn’t always safe.
D. You can compare the prices of the same product.
How is online shopping changing our lives?
A. We don’t need to go to the shops to buy things.
B. We can shop at any time.
C. We can compare the prices of the same product and spend a lot… or save money.
D. Above all.
对“菌群失调”的解释是:( )
A. 细菌的致病力发生了改变
B. 机体抵抗力降低的一种表现
C. 正常菌群改变了寄居部位
D. 各菌群数量和比例发生变化
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