如图所示的为四种动物，请据图回答问题： （1）依据动物体内是否具有______

填空题。

1. A _____ sea has no, or only small waves, and a _____ film has no speech.

2. There is an article that _____ the rise of the prices. (concern)

3. The children are rather _____ about their mother's health. (concern)

4. Officials should _____ themselves _____ public affairs. (concern)

5. During his last lecture, the scientist _____ (觉得) easier to explain the theory

    to those with some background knowledge. (find)

6. We're going to play basketball. Would you like to _____? (join in / attend)

患者男，缺失，缺失，拟行可摘局部义齿修复，设计RPI卡环，采用三臂卡环，舌杆大连接体连接

下列哪项不属于杆状卡环的变体（）

A.U形

B.W形

C.T形

D.I形

E.L形

已知三角形的面积为30cm²，一边长为acm，这边上的高为hcm．

（1）写出a与h的函数关系式．

（2）在坐标系中画出此函数的简图．

（3）若h=10cm，求a的长度？

《建设工程质量管理条例》规定，建设单位应当自建设工程竣工验收合格之日起( )日内，将建设工程竣工报告报建设行政主管部门备案。

A．10

B．15

C．20

D．30

语言障碍分为哪几种?