根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
I live in Japan, where electronic items are a way of life, so it is no surprise that many students carry these little electronic dictionaries. E-dictionaries may be lighter and compacter (简洁的) than any paper dictionary.  小题1:  However, to me, these are pretty much the limits to their advantages.
I think e-dictionaries should be limited in their use in classrooms. 小题2:
E-dictionaries are much more expensive. In Japan, they cost as little as 10,000 yen(US$100)much as 40,000 yen, depending on how many functions you want (or think you want) and depending on how fashionable you are. My trusty Random House paper dictionary is copyrighted at1995, cost me a mere US$12.95 plus tax.
E-dictionaries are more fragile. Drop your paper dictionary. Go ahead. Hold it above your head and drop it. 小题3:
E-dictionaries need batteries. Batteries are temperature sensitive. Batteries cost money, too.
E-dictionaries have keypads. Typing in the spelling of a word is harder and more time consuming than looking through pages and using the index at the top of each page.
小题4: Sound . Little devices beep (嘟嘟声) when you press the buttons, but it is very disturbing to some people in a classroom situation or library.
Finally, let’s consider making corrections or additions. No dictionary is perfect, paper version or electronic. However, when you find something you’d like to change in the e-dictionary, you can’t do anything about it. You can pencil in some notes with the paper type. Similarly, if you learn a word that isn’t in the dictionary, a few notes of a pencil make it easy to increase its memory capacity.  小题5:And, for those students whose habit is to mark certain words with a highlight pen for ease of future reference, again, the paper dictionary wins out.

A．But it is impossible to do so with a keypad model.

B．They may even contain more words and expressions.

C． Let me add a statement about one that really troubles me.

D．Now, try this with any lightweight plastic e-dictionary, and you’ll be picking up the pieces.

E．That huge, heavy paper dictionary that you see in your library looks like a building block in size and weight.
F．E-dictionaries have advantages as well as disadvantages.
G．Let’s take a look at the following reasons.