请问fast的美式英语发音是/fa:st/吗？

Why is it ________ so many people enjoy eating on the run?—Of course, the most obvious answer is that fast food is fast. （fast）an economy grows，（great） Bad news _____ fast. Do they like fast food? Jogging means running fast   For those who live in a fast food fantasy world, eating it every day, believing that it is fast, convenient and inexpensive, it can be catastrophic. Do you eat fast food , Sandy —— . I believe even eating a little fast food is also harmful to my health . FAST评估法中的A是指（） Li Lin took the 8:00 bus to Fuzhou this morning—Really He _________ a fast train It’s much morecomfortable to travel by fast train These new cars are fast, ____ and flexible. People in Shenzhen live a life at a fast (). 脑卒中FAST试验F为（） More and more Chinese people prefer to eat fast food to save time, so all kinds of fast food restaurantsare ________ in China now.[ ] 2016年，中国建成500米口径球面射电望远镜FAST。FAST接收的是宇宙天体发出的（）？ Fast foods offer convenience but they ______ of nutrition(营养). Get、Big、Fast分别是指( )。 The disease, ________, could spread very fast. ps may help you read fast ___(1): Is the 3D printing fast? He can run as fast as Jim.