Cook the egg noodles in boiling salted water until just (1) ________. Drain, place in a bowl, and set aside. (2) ________ a frying pan until very hot. Add a splash of oil, then (3) ________ the beef slices with the sliced garlic, ginger, and chillies until just cooked. (4) ________the bean sprouts, a tablespoon of soy sauce, and lime juice for the last 30 seconds of cooking. Put all the cooked contents into a large bowl, including all the juices. Put the pan back on the heat, and add some oil. Then add the cooked noodles and toss well over the heat. (5) ________ the fried noodles between four plates. Return the beef and juices to the pan and (6) ________ until heated through. Arrange the beef on top of the noodles and (7) ________ with a lettuce leaf and some coriander

Từ điểm P nằm ngoài(O), Vẽ tiếp tuyến PA. qua trung điểm B của PA vẽ cát tuyến BCD( C nằm giữa B, D).PC, PD cắt(O) tại E và F cm

a)góc DCE= DPE+ CAF

b) AP//EF
c) AB^2 = BC.BD