题干
—The weather turns out to be fine.
— We can depend on ___ that the goods will be shipped to the flooded area on time.
A：it
B：/
C：this
D：which
答案(点此获取答案解析）
A
0g/cm3，其中NO3-的质量分数为3．1％，2 L该溶液中Ca2+的物质的量约等于 （ ）
