皮皮学，免费搜题
登录
搜题
【单选题】
What value is represented by the bit pattern 01011100 when interpreted using floating-point format in which the most significant bit is the sign bit, the next three bits represent the exponent field in excess notation, and the last four bits represent the mantissa?A.
-1 1/2
B.
1 1/2
C.
-3/8
D.
3/8
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】The graphite shape in ( ) is vermicular.
A.
gray iron
B.
Malleable iron
C.
Nodular iron
D.
Vermicular iron
【单选题】The graphite shape in ( ) is lamellar.
A.
gray iron
B.
Malleable iron
C.
Nodular iron
D.
Vermicular iron
【多选题】由乙烯推测丙烯（CH 2 =CHCH 3 ）的结构或性质正确的是 [ ]
A.
分子中3个碳原子在同一直线上
B.
分子中所有原子在同一平面上
C.
可与氯化氢加成生成两种产物
D.
能使高锰酸钾溶液褪色
【简答题】家用空调中冷凝水从何而来?请计算 100 立方米 30 °C、相对湿度 70% 的空气降温到多少摄氏度才会产生冷凝水? 会产生多少克冷凝水?
【单选题】丙烯可看作是乙烯分子中的一个氢原子被 —CH 3 取代的产物,由乙烯推测丙烯 (CH 2 = =CHCH 3 ) 的结构或性质,正确的是 ( )
A.
分子中所有原子都在同一平面上
B.
与 HCl 加成只生成一种产物
C.
分子中三个碳原子在同一直线上
D.
丙烯可以使酸性高锰酸钾溶液褪色
【单选题】Graphite is a form of carbon.Why can graphite be used as a lubricant?
A.
Graphite contains delocalised electrons which move throughout the structure.
B.
Graphite contains weak covalent bonds so the atoms move easily.
C.
Graphite has a low melting point so it easily turns into a liquid.
D.
Graphite has weak forces of attraction between layers so they can move.
【单选题】The graphite shape in ( ) is spheroidal.
A.
gray iron
B.
Malleable iron
C.
Nodular iron
D.
Vermicular iron
【单选题】由乙烯推测丙烯（CH 2 =CHCH 3 ）的结构或性质正确的是 [ ]
A.
分子中3个碳原子在同一直线上
B.
分子中所有原子在同一平面上
C.
可与氯化氢加成生成一种产物
D.
能使高锰酸钾溶液褪色
【单选题】The graphite shape in ( ) is floccular.
A.
gray iron
B.
Malleable iron
C.
Nodular iron
D.
Vermicular iron
【多选题】The grey pig iron usually includes ( ) according to the shape of graphite precipitation.
A.
grey cast iron
B.
nodular cast iron
C.
malleable cast iron
D.
vermicular cast iron
相关题目：
参考解析：
知识点：
题目纠错 0
发布
