皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
以下关于水质标准说法正确的是( )。
A.
《地表水环境质量标准( GB3838-2002 )》中规定 IV 类及以上水可以作为饮用水源。
B.
《生活饮用水卫生标准( GB5749-2006 )》中规定了微生物学指标、毒理学指标、感官性状与一般化学性指标、放射性指标、消毒剂指标等几大类。
C.
对饮用水来说, 《地表水环境质量标准》规定了产品水的要求 。
D.
对饮用水来说, 《生活饮用水卫生标准》规定了原料水的要求 。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】A beneficial book is like a faithful friend who plays an important role in your life.
A.
negotiating
B.
brings in
C.
argument
D.
eateries
E.
pitched in
F.
offer to do
G.
How about going?
H.
owes..... to
I.
loyal
J.
involve
【简答题】Jennifer seems to believethat [A]the extinction of Y chromosome isinevitable. [B]Page’s research is more beautiful thanhers. [C]the“imminent demise”theory is nonsense. [D]whether Y chromosome will dis...
【简答题】给出下列线性规划的最优单纯形表,如表2.4.1所示。其中,s1,s2分别为第1、第2约束方程中的松驰变量。 max z=6x1+2x2+12x3 (1)求出最优基不变的b2的变化范围; (2)求出最优解不变的c3的变化范围; (3)在原线性规划的约束条件下,增加约束条件:x1+2x2+2x3≤12。其最优解是否变化?如变化,求出最优解。
【简答题】A book is like a garden carried in the pocket.
【单选题】The author's attitude towards the Y chromosome issue seems to be
A.
optimistic.
B.
confusing.
C.
panicked.
D.
objective.
【简答题】The author’s attitudetowards the Y chromosome issue seems to be [A]optimistic. [B]confusing. [C]panicked. [D]objective.
【单选题】Jennifer seems to believe that
A.
the extinction of Y chromosome is inevitable.
B.
Page's research is more beautiful than hers.
C.
the 'imminent demise' theory is nonsense.
D.
whether Y chromosome will disappear is uncertain.
【单选题】Buying a book is like consuming a beefsteak.
A.
T
B.
F
【单选题】A good book is like a good friend. You cannot keep it long.
A.
very
B.
so
C.
too
D.
such
【单选题】Human Y chromosome contains _______ genes.
A.
479
B.
579
C.
679
D.
779
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题