Microscopic technique

What does the passage mainly discuss

• The detail seen through a microscope

• Sources of illumination for…

• A new kind of..

• Outdated microscope…

According to the passage,the invention..scientists to

• See viruses directly

• Develop the electron

• Understand more about…

• Discover single-called…

Minuscule

• Circular

• Dangerous

• Complex

• Tiny

It

• A type of mircroscope

• Human perception

• The natural world

• Light

Why does the author mention..

• To begin a discussion

• To put the X-ray

• To show how

• To explain

Why did it take so long X-ray

• Funds for research

• The source of illumination

• Materials used to

• X-ray microscopes

Enables

• Constitutes

• Specifies

• Expands

• Allows

Rather in lines 25

• Significantly

• Preferably

• Somewhat

• Instead

Those in line 29

• Properties

• Investigations

• Microscopes

• Xrays

Based on the information, what can be X-ray

• They will probably replace…

• They will eventually…

• They will provide information…

• They will eventually..