查询goods表，按add_time 排序

Eating more calories than you burn in daily activity and exercise can lead to obesity. Over time, these extra calories_____________and cause weight gain. A: add to B: add in C: add up D: add up to

为mydb.goods表新增total（库存量）和add_time（发布时间）字段。

Traffic jams are not only annoying but also ____________. The extra time and fuel wasted be- cause of traffic congestion add up to almost $_________________.

Why should you save some time at the end of the writing test? A: To check for errors B: To add in a wider range of language C: To go to the bathroom

________ is known to all，good friends _________ happiness and value to life. A: It; add B: As; add C: It; add up D: As; add to

增加约束用（ ）语句是实现。 A: ADD COLUMN B: ADD CONSTRAINT C: ADD FILE D: ADD TABLE

函数模板：template T add(T x，T y) { return x+y；} 下列对add函数的调用不正确的是 A: add< >(1，2) B: add(1，2) C: add(1．0，2) D: add(1．0，2．0)

what is the purpose of the brake hoses in the brake system?（ ） A: they add friction B: they add flexibility C: they add air flow D: they add brake force

函数模板：template＜class T＞ T add(T x，T y){return x+y；} 下列对 add 函数的调用不正确的是 A: add ＜＞ (1，2) B: add ＜int＞ (1，2) C: add (1.0，2) D: add(1.0，2.0)