女性，32岁，右乳肿物伴间断疼痛2个月余。查体：双乳未见红肿、凹陷、突起，右乳外上象

The schoolboy regretted _______ after he didn't pass his exam.

A．the time on TV

B．to spend so much time on TV

C．taking most of his time on TV

D．spending so much time on TV

-You were not at home when I called you yesterday.

-No. We weren't. We___________ in the nearby supermarket at the moment.[ ]

A. were doing shopping

B. have done some shopping

C. are going shopping

D. had done some shopping

下列变化属于化学变化的是（　　）

A．铁生锈

B．湿衣服晾干

C．木材制成桌椅

D．冰雪融化

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辛所受损害应由谁承担责任为什么