用20克糖制成含糖率为20%的糖水,需要加水100克.______.(判断对错).
20÷20%-20,
=100-20,
=80(克),
80克≠100克.
故答案为:×.
软件质量包含多方面的内容,(1)、(2)、可移植性和可复用性等是较为重要的质量特性。在软件开发中,必须采取有力的措施,以确保软件的质量,这些措施至少应包括(3)、(4)和(5)。
空白(2)处应选择()
A.稳定性
B.可靠性
C.数据一致性
D.可维护性
What does the speaker feel about summer pictures
A.Summer films might cause mental damage to the audience.
B.Summer films need to give due respect to the audience’s intelligence.
C.Summer films should cater to both children and grownups.
D.Summer films should not target at the mass-market.