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【简答题】
今欲用NaOH固体配制100mL0.5mol/L的NaOH溶液．配制过程如图所示： 请根据题意回答： （1）配制该溶液用______（填仪器）． （2）用小烧杯在托盘天平上称取______NaOH固体． （3）向容量瓶中加入蒸馏水，如果超过了刻度线，应______． （4）配制好的溶液______（填“能”或“不能”）长期存放在容量瓶中． （5）以下因素会造成实验结果偏低的是______（填序号） a．容量瓶中原来有少量蒸馏水 b．观察液面俯视 c．忘记洗涤d．观察液面仰视．
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【多选题】饭店制定客房预订政策的作用主要有( )。
A.
预订工作有章可循 B．处理预订纠纷的依据和规则 C．保护饭店自身的合法权利
B.
满足客人要求，保护客人利益 E．有利于饭店的经营与管理
【简答题】Which part of the building should a visitor go to if he wants to make a phone call?
【简答题】Listen and then decide whether the following statements are true(T) or false(F) Patrick
is waiting for the visitors at Hong Kong airport. The
first visitor Patrick speaks to is Tony Hunter. Susan
Garn...
【简答题】The visitor wants to live at the hotel they lived at last time .
【单选题】听力原文： Although America is a huge country, traveling is very quick and easy. The visitor who wants to see as much of the country as possible should travel by bus. That is, if he hasn't got a friend who...
A.
You can sleep in it.
B.
it's safer than trains.
C.
It's fast and comfortable.
D.
You can see more of the country.
【单选题】听力原文： Although America is a huge country, traveling is very quick and easy. The visitor who wants to see as much of the country as possible should travel by bus. That is, if he hasn't got a friend who...
A.
You can sleep in it.
B.
It's safer than trains.
C.
It's fast and comfortable.
D.
You can see more of the country.
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