问题
单项选择题
混凝土外加剂固体含量试验，液体产品试样称量为（）。
A.1.0000g～2.0000g
B.2.0000g～3.0000g
C.3.0000g～5.0000g
D.5.0000g～6.0000g
答案
参考答案：C
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混凝土外加剂固体含量试验，液体产品试样称量为（）。
A.1.0000g～2.0000g
B.2.0000g～3.0000g
C.3.0000g～5.0000g
D.5.0000g～6.0000g
参考答案：C
| 35．Applications put computers to pratical business (1) , but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time. The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail. |
(3)
A．when
B．where
C．which
D．who