一支牙膏1元5角,小明有10张5角钱,买了两支后,小明还有____元钱。
(注:SiCl4的沸点为57.6 ℃,金属氯化物的沸点均高于150 ℃)
Kelly works in a restaurant as a waitress in her spare time, so we can say she does a ________ job.