请教11OG对run－on的解释

引自11OG：

Run-on sentences: A run-on sentence is two independent clauses that run together without proper punctuation.

Examples:

correct:"Jose Canseco is still a feared batter, most pitchers don't want to face him."

Incorrect:"Jose Canseco is sitll a feared batter most pitchers don't want to face him."

对例句的疑问：逗号可以连接两个独立的句子吗？是不是应该加上一个连词呢？

在OG10th中的说法似乎是要的，没有看过11th，但是如果他这么写，那就只有认了。

其实，很多语气转折词，如果语意明确，是可以从简洁的角度考虑省略的，比如这句。

correct:"Jose Canseco is still a feared batter, most pitchers don't want to face him."

this sentence still seems a run-on sentence to me,

is it "," or ";" can mm double check for me?

thanks~

see example

10.   However much United States voters may agree that there is waste in government and that the government as a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimal state.

(A) However much United States voters may agree that

(B) Despite the agreement among United States voters to the fact

(C) Although United States voters agree

(D) Even though United States voters may agree（A）

(E) There is agreement among United States voters that

A is the best choice. ...because E starts with an independent rather than a subordinate clause and separates its two independent clauses with a comma, it creates a run-on sentence with no logical connection established between the halves.

71.   The original building and loan associations were organized as limited life funds, whose members made monthly payments on their share subscriptions, then taking turns drawing on the funds for home mortgages.

(A) subscriptions, then taking turns drawing

(B) subscriptions, and then taking turns drawing

(C) subscriptions and then took turns drawing

(D) subscriptions and then took turns, they drew（C）

(E) subscriptions and then drew, taking turns

The wording in D results in a run-on sentence and does not specify what the members took turns doing.

仔细看了看，还是逗号，对此我也觉得很迷惑。而且第一句对run－on的解释也说是两个独立的句子放在一起而没有标点符号的连接。

迷惑中。。。

11OG-18:

Computers are becoming faster, more powerful, and more reliable, and so too are modems, they are the devices to allow two or more computers to share information over regular telephone lines.

A. so too are modems, they are the devices to allow

B. so too are modems, the devices that allow

C. so too modems, the devices allowing

D. also modems, they are the devices that allow

E. also modems, which are the devices to allow

OG解释：

The structure of the first main clause and the comma following reliable lead the reader to expect a second main clause. The clause so too are modems correctly fulfills this expectation. However, the clause introduced by they are is another main clause, and its inclusion creates a run-on sentence. To allow is not an idiomatic way to modify devices; either that allow or allowing would be correct. The correct answer is B.

此题的解释刚好与前面解释run－on的例句矛盾，看来两个独立的句子是不可以用逗号连接的。

我正好看到这个问题，OG11-18的确和它前面自己的解释矛盾，怎么会有这么低级的错误？