内痔常见的早期症状是A．肛门疼痛B．痔核脱出C．黏液血便D．大便时滴血E．肛门周围红肿

Dietary intervention may work even after precancerous warning signs have appeared.

A．Right

B．Wrong

C．Not mentioned

It can be inferred from the text that ______.

A．no one believes women's study

B．few people believe women's warning signs

C．women's heart attack is often ignored

D．women always realized their dangers

The study shows that the classic warning signs of heart attack are ______.

A．not typical in women patients

B．obvious in all the patients with heart disease

C．rarely found in both male and female patients

D．often seen a month or more before the attack

A、Indication Sign

B、A Speed Limit Sign

C、Warning Sign

D、Prohibitory Sign

A、 How come you

B、 How do you come

C、 How can you come

D、 How you come

A、 at

B、 on

C、 among

D、 within