已知乙的年收入是甲的年收入的34,乙的年支出是甲的年支出的58,一年内两人的储蓄

题型:填空题

问题:

已知乙的年收入是甲的年收入的
3
4
,乙的年支出是甲的年支出的
5
8
,一年内两人的储蓄(收入-支出)都是2500元,那么甲的年收入是______元,乙的年收入是______元.
考点:二元一次方程组的应用
题型:填空题

十一长假报名随旅游公司旅游,这种消费属于[ ]

①劳务消费

②有形商品消费

③生存资料消费

④享受资料消费

⑤租凭消费

A、①②③

B、②③④

C、①④⑤

D、①④

题型:填空题

绿色开花植物体与人体相比较,缺少的结构层次是(  )

A.组织

B.器官

C.系统

D.个体

题型:填空题

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

Carrie, Lisa, and Betty all make purchases at a music store that sells all records for a certain price and all CDs for a certain price. How much does Carrie pay for 1 record and 2 CDs ?()
(1) Lisa bought 3 records for $22.50.
(2) Betty bought 2 records and 4 CDs for $55.00.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

题型:填空题

身体素质的主要指标包括()

A.心率、脉搏、呼吸频率、血压、肺活量等

B.红细胞总数、白细胞总数和血红蛋白等

C.速度、力量、耐力、灵敏度、柔韧性和协调性等

D.身高、体重及胸围等

E.瘦体重和体脂肪

题型:填空题

硫代乙酰胺法检查重金属时用什么来控制pH值()

A.醋酸盐缓冲溶液

B.磷酸盐缓冲溶液

C.醋酸

D.磷酸

E.氨氯化铵缓冲溶液

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