Which of the following grammar activities is most communicative?

The length of time active immunity lasts varies with different diseases,

Which activity does the article NOT recommend?

The last sentence of the first paragraph serves to illustrate which of the following about tea?

Which method loads the configuration which was active before your last commit?（）

You are maintaining the SALES database. You have added a new disk to a disk group. Automatic StorageManagement performs the rebalancing activity. You want to speed up the rebalancing activity.Which parameter should you specify to control the speed of the rebalancing activity?（）

Which activity lasts the longest ?

●In a computer，which of the following is the longest period? (66) .

In a four stroke engine, which process lasts the longest period?（）

Advection fog holds longest over which portions of the lakes? （）

Advection fog holds longest over which portions of the lakes?（）