将数组的键名全部转换成小写和大写的函数是（ ）？ A: array_change_value_case($array [,CASE_LOWER|CASE_UPPER]) B: array_change_key($array [,CASE_LOWER|CASE_UPPER]) C: array_change_key_case($array [,CASE_LOWER|CASE_UPPER]) D: array_change_case($array [,CASE_LOWER|CASE_UPPER])

which parameter is max. value can be referred in case IMM change? A: speed B: injection time C: injection pressure D: metering time

VLOOKUP函数的格式是( ) A: VLOOKUP(lookup value, table array, range lookup) B: VLOOKUP(lookup value, table array, col index num, range lookup) C: VLOOKUP(range, criteria) D: VLOOKUP(lookup value, table array, row index num, range lookup)

In the case of homothetic preferences the entire change in demand from a price change is due to the substitution effect.

针对下列程序段，需要()个测试用例才可以满足语句覆盖的要求。 switch( value) case 0;other =30; break; case 1; other =50; break; case 2;other=300; case 3; other =other /value; break; default:other =other * value;

Which<br/>of the following is not a change in accounting principle? () A: A<br/>change from LIFO to FIFO B: A<br/>change in estimated salvage value of depreciable asset C: A<br/>change from an accelerated depreciation method to straight-line<br/>depreciation D: A<br/>change from historical cost to fair value accounting.

Project manager believes that modifying the project scope may provide added value for the customer.the project manager should（）. A: change the scopr baseline B: contact the customer to determine if the change adds value C: call a meeting of the change control board D: change the project's objectives

The value of j of a given half-reaction will change when it is multiplied by a factor.

In the case of homothetic preferences the entire change in demand from a price change is due to the substitution effect. A: 错 B: 对

下列程序段的输出结果为______。 int a=2; switch(a) case 2: System.out.println("Value is 2."); case 3: System.out.println("Value is 3."); break; default: System.out.println("end"); break;