剖检马氏管变形虫病病蜂，可见马氏管出现：（）A、变色B、萎缩C、肿胀D、伤口E、破裂

阅读下列材料，回答问题.(8分)

材料-：南方地区略图

材料二：南方地区热量充足，降水丰沛，具有良好的农业生产条件.南方地区物产丰饶，是全国最大的水稻、生猪、柑橘、茶叶、桑蚕、甘蔗、水产和热带作物产区。

材料三：2014年4月5日，云南省昭通市永善县发生5.3级地震。我省立即派出救援队，火速赶往灾区，参与救援。

（1）下列省区中，全部位于秦岭—淮河一线以南的是    (2分)

A.陕西省            B.河南省

C.广东省            D.云南省

（2）下列国家中，与我国南方地区陆上相邻的是       (2分)

A.越南       B.泰国        C.俄罗斯      D.菲律宾

（3）台湾省西隔台湾海峡与    （简称 )相望。(1分)

（4）根据材料一可知，位于江西省与福建省之间的山脉是    山脉。(1分)

（5）你认为救援队从泰州长沙出发时，应选择   交通方式前往灾区，理由是           。(2分)

如图所示，质量、电量分别为m₁、m₂、q₁、q₂的两球，用绝缘丝线悬于同一点，静止后它们恰好位于同一水平面上，细线与竖直方向夹角分别为α、β，则(      )

A．若m₁=m₂，q₁<q₂，则α<β

B．若m₁=m₂，q₁<q₂，则α>β

C．若q₁=q₂，m₁>m₂，则α>β

D．q₁、q₂是否相等与α、β大小无关，且若m₁>m₂，则α<β

草坪生长平整，如果有杂草的话不用着急，早点晚点除杂草都可以。

Mother’s Day is coming. It is a time to let Mom know she’s special to you. Finding the right for Mom on that day is not always easy. We often want something personal and thoughtful. But how can we make it? These following ideas may help you.

Gift of Time

Moms just want to spend time with their children so make it a Mother-Daughter/Son day. Spend the whole day with her. Do the things she likes doing with her.

Home Video

Take your family videos and make them a short home video. She can enjoy it whenever she misses you. Although it may take a lot of time, the process(过程) can be great fun and the result is often priceless(无价).

Mom Mix

Make a CD for her. It’s a collection of all the songs that remindher of you and your growing up.

Write a Letter

Write a letter instead of a simple card. Write about all the good memories you have with her and all the things she has done for you.

Flowers

People send carnations(康乃馨) on Mother’s Day. You can easily spend a lot of money on them. If you have flowers in your garden, or can handpick them, it can be a great gift.

Dinner

Make a dinner and invite her over. You can also take it over to her house and surprise her. Just don’t’ forget to wash the dishes after the dinner.

小题1:Why is it not easy to find a right gift on Mother’s day?

A．Because we want to save money

B．Because mothers don’t like gifts.

C．Because we always want to get something special

D．Because mothers are very difficult to deal with小题2:Making a home video may be _______.

A．fun

B．boring

C．easy

D．nothing小题3:What does the underlined word “remind” mean in Chinese?

A．使……防范

B．使……想起

C．使……经过

D．使….. 痛苦小题4:How many kinds of ideas have been mentioned here for Mother’s Day?

A．4

B．5

C．6

D．7小题5:From the passage we know _________.

A．you can buy a big cake for your mom on Mother’s day

B．writing a letter is better than sending a simple card to your mom on Mother’s Day.

C．inviting your mom to eat in a restaurant is a good gift for her.

D．buying carnations for her is a good way.

RCS－902A型成套保护装置中不含（）元件为主体的纵联保护。

A.工频变化量方向

B.零序方向

C.距离

D.零序电流差动