Science功課(英文),教教我!!

Safety Rules in the laboratory

(1)We should not enter the laboratory unless the laboratory technician is there. [T]
(2)We should not throw broken glass into the sand bucket. [T]
(3)We should report all accidents involving injury only. [F]
(4)We can pour liquid wastes that are not corrosive into the sink. [T]
(5)We should always wear safety goggles when doing experiments. [T]


2013-09-02 04:07:34 補充：
Sorry for my outdated understanding of the laboratory situation. It's been many many years since I was last working in a lab!!!
Thanks Masterijk for sharing.

我前幾天都答過另外五題science的 T/F 題，但似乎各有各道理。
現在也不知道誰是誰非。
加上這幾天Yahoo!又出事了，很多帖都不出現。
不知如何尋回。

(4)We can pour liquid wastes that are not corrosive into the sink. [T]
不確定，不corrosive但也有可能與金屬有反應，也有可能不適宜排出污水道，因為一些化學物質不同於一般的廢水，有可能會危害生態。舉例，水銀。

2013-09-01 20:30:14 補充：
(5)We should always wear safety goggles when doing experiments. [T]
How about experiment of pendulum? Really need goggles?
所以我也不確定。

其實妳的解答也有道理的。所以很難說。
正如我找不到那個science T/F的帖。
它有一題問：science knowledge is always true.
你上網一search就知道阿里士多德曾經咁講。
但呢句野都唔知話佢岩定錯。

2013-09-01 20:31:39 補充：
另外有一題話： you can know more about everything around us by studying science.

呢句又係可圈可點，你話true又得，你話false都得。
我最初答true，但似乎未必岩，但如果你答false的話，咁你舉例似乎我都可以反駁喎～

所以真係唔知係點～　　^_^

2013-09-01 20:35:42 補充：
唔好意思呀，好似好多意見好多牢騒～

可能頭先無啦啦畀人評價完，個心唔係幾岔氣～
http://hk.knowledge.yahoo.com/question/question?qid=7013082900065

Still, thanks for your answer to help the student.
=^o^=

2013-09-02 06:00:16 補充：
"It's been many many years since I was last working in a lab!!!"

大家咁話~ 嘻嘻~