In this island country, tourism _____about half of its Gross Domestic Product.

A.count

B.estimate

C.number

D.calculate

B.You have to initiate a recount for zero counts before you can post the differences if a physical inventory document has already been created, and the count has already been posted

C.You enter the count and post the differences in one step if a physical inventory document has been created

D.You only have to create a physical inventory document with reference to the count and post the differences in one step if the count has already been posted

E.You create a physical inventory document, enter the count, and post the differences in one step

A.str_count

B.strlen

C.count

D.len

A.1

B.2

C.3

D.4

A.COUNT

B.RECCOUNT()

C.CALCULATECNT()

D.SUMTOCONNT

A.SUM

B.COUNT

C.AVERAGE

D.RANK

A.%

B./

C.++

D.=

假设n为2的乘幂，并且n＞2，试求下列算法的时间复杂度及变量count的值(以n的函数形式表示) 。

int Time(in tn) {

count=0; x=2;

while(x＜n p="" {＜=""＞

x*=2; count++;

}

return count;

}