A written IQ test is merely a guideline.是什么意思？

A written IQ test is merely a guideline.

书面智商测试仅供参考。

written

adj. 书面的，写成文字的，明显受到…影响，（感情）全挂在脸上；v. 写( write的过去分词)，写信；

例句
...a written declaration by someone, authorizing another person to act as his agent.
一份某人授权他人为其代理人的书面申明

IQ

abbr. idem quod (Latin=the same as) （拉丁语）同…，inquiry 询价，询盘；

例句
A written IQ test is merely a guideline.
书面智商测试仅供参考。

test

n. 试验，考验，测验，化

例句
Car manufacturers are already producing small numbers of electric vehicles to test customer acceptance...
汽车制造商们已经开始生产少量的电动车辆以测试顾客的接受程度。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

merely

adv. 仅仅，只不过，只是，纯粹，全然；

例句
In actuality, Teddie did not have a disorder but merely a difficult temperament...
实际上，小特迪并非哪不正常，而仅仅是属于困难型气质。

guideline

n. 指导方针，指导原则；

例句
Our guideline would be the prevailing world market prices.
我们要以当时的国际市场的价格为准绳.