患儿女，14岁。冠折1/2，咬合关系正常，患牙经根管治疗后，最好选用哪种桩冠修复（）

An embedded operating system is the (71) program that manages all the other programs in an embedded device after initial load of programs by a(an) (72). It normally guarantees a certain capability within a specified (73) size and (74) constraint as well as with application programs. It also normally has small foot print including initial boot loader, OS kernel, required device drivers, (75) for the user data and so forth. It has very-likely structure of a normal operating system however mainly differentiated by some factors such as type of pre-installed device, functional limits, taking designed job only.

A．data

B．storage

C．bus

D．CPU

鼓风动能的大小决定了回旋区和燃烧带的大小，从而决定着炉缸煤气的初始分布，影响着煤气在（）。

女孩，13岁，洗澡时家人发现脊柱弯曲畸形，来医院就诊。

下一部的检查方法应选择（）

A.骨盆X线平片

B.双下肢X线正侧位片

C.全脊柱X线正侧位片

D.肌电图检查

E.腰椎CT检查

以下消息不属于RRC消息的是（）

A.InitDirectTransfer

B.DirectTransfer

C.RRCRelease

D.SecurityModeCommand

一切依靠群众，必须反对

A．教条主义
B．经验主义
C．命令主义
D．尾巴主义