沉积岩的突出特征之一是[ ] A、坚硬不易被侵蚀 B、常含有化石 C、具有片理

Dear Peter,

But first, I am sure that you are wrong that nobody will care if you leave your home. What about your parents? And other family members? It seems that you are very sad. You'd better go to see a doctor or talk to your parents. They can help you. Second, I'm sure there's someone in your class who feels lonely, too. You never know how other people feel inside. Try to make friends with them. Or you join a club to meet new people and to keep yourself busy.

You need to find happiness in yourself. Write a list of all the good things about yourself. Learn to like yourself, and then others will see your confidence (信心) and like you, too.

Editor

小题1:Peter isn’t good at _______ and he feels __________.

小题2:He writes to the editor to ask for _______ because he wants to _______feeling lonely.

小题3:If Peter joins a club, he can_______ new people and keep _______ busy.

小题4:The editor suggests (建议) that Tom should talk to a ________ and his ________.

小题5:Peter is lack of (缺少) _______ and he needs to find ________ in himself.

下列的植物种子中有两片子叶的是（　　）

①高粱  ②荷花  ③玉米  ④花生  ⑤燕麦  ⑥大豆  ⑦青稞  ⑧红糯米．

A．①③⑥⑦

B．②④⑤

C．①③⑧⑤

D．②④⑥

新生儿出生时头围平均约为（）

A.28—30cm

B.32—34cm

C.34—36cm

D.36—38cm

土方开挖的一般技术要求有（）。

A.合理布置开挖工作面和出土路线

B.合理选择和布置出土地点和弃土地点

C.应采用高效率施工设备

D.开挖边坡，要防止塌滑，保证开挖安全

E.地下水位以下土方的开挖，应切实做好排水工作