题目内容

There are as many food choices in America as there are 1 in the _2____.

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Cereal, smoothies, milk and toast or a cup of coffee are all examples of __1 in America.Most Americans eat _2_ on the go. This could be sandwiches, leftovers or a salad.For _3___, it could be any combination of vegetables, meat and sauce, paired with either bread, rice or pasta.

Eating out in America is __1.The staff in restaurants are usually very _2_, because they would like you to give them 3__ (which is about 15-20% of the bill).

Americans _1_ to eat burgers and pizza.They eat burgers and pizza maybe 2 or _3___ a week.

下列关于幽门螺杆菌说法错误的是()。

A.幽门螺杆菌简称HP。
B.幽门螺杆菌是截止2018年底所知的唯一能在人类胃中存在的微生物种类。
C.幽门螺杆菌是从正常人的胃粘膜活检组织中分离出来的。
D.幽门螺杆菌是1983年发现的